system英/?s?st?m/釋義：[n.]系統(tǒng)例句：Wearestillusingthissystemtoday.我們今天仍然在使用這個(gè)系統(tǒng)。file英/fa?l/釋義：[n.]檔案例句：I'mstilllookingforthatlostfile.我還在找那份丟失的檔案。amazing英/??me?z??/釋義：[adj.]令人大為驚奇的例句：Thisisanamazingcity.這是一座令人驚奇的城市。planet英/?pl?n?t/釋義：[n.]行星例句：Theearthisaplanetanditgoesaroundthesun.地球是一顆行星，它繞著太陽轉(zhuǎn)。billion英/?b?lj?n/釋義：[n.]十億例句：MorethanfourbillionpeopleliveinAsia.超過40億人生活在亞洲。cover英/?k?v?(r)/釋義：[v.]蓋；覆蓋例句：Thickcloudscoverthetopandsnowcanfallveryhard.厚厚的云層覆蓋頂部，雪會(huì)下得很大。area英/?e?ri?/釋義：[n.]地區(qū)；地域例句：Theareahasaveryrichhistory.這個(gè)地區(qū)有非常燦爛的歷史。freezing英/?fri?z??/釋義：[adj.]極冷的例句：Infreezingcoldwinter,windowsareoftencoveredwithfrost.在極寒的冬天，?窗戶上經(jīng)常會(huì)被霜覆蓋。?north英/n??θ/釋義：[n.]北；北方例句：AndinthenorthofChina,peopleeatlotsofjiaozi!在中國北方，人們吃很多餃子！pole英/p??l/釋義：[n.]（行星的）極；地極例句：Forsixmonthsoftheyear,thereishardlyanylightatthepoles.一年中有六個(gè)月，地球的兩極幾乎沒有任何光線。desert英/?dez?t/釋義：[n.]沙漠；荒漠例句：TheSaharaisthebiggestdesertintheworld.撒哈拉沙漠是世界上最大的沙漠。metre英/?mi?t?(r)/釋義：[n.]米例句：Itwasabouthalfametredeep.它大約有半米深。reach英/ri:t?/釋義：[v.]足夠達(dá)到例句：Yes!Icanseeit.Butit'stoodeep.Ican'treachit.對(duì)！我能看到它。但它太深了。我夠不著。grain英/gre?n/釋義：[n.]谷粒例句：Theyworkveryhardforeachgrain.他們?yōu)榱嗣恳涣＜Z食都很辛苦。wide英/wa?d/釋義：[adj.]寬的；寬闊的例句：That'stheThames.It'salongandwideriver.那是泰晤士河。這是一條又長又寬的河。whale英/we?l/釋義：[n.]鯨例句：Thebluewhaleistheworld'slargestlivinganimal.藍(lán)鯨是當(dāng)今世界上最大的動(dòng)物。butterfly英/?b?t?fla?/釋義：[n.]蝴蝶例句：She'slookingatanicebutterfly.她在看一只漂亮的蝴蝶。provide英/pr??va?d/釋義：[v.]提供；供應(yīng)例句：Yes.Theyprovidehomeforanimalstoo.對(duì)。它們也為動(dòng)物提供了家園。explore英/?k?spl??(r)/釋義：[v.]探索例句：ButIalsogetachancetoexplorethecity.但我也有機(jī)會(huì)探索這座城市。disappear英/?d?s??p??(r)/釋義：[v.]消失；不見例句：Therainforestmaydisappearforever.這片雨林可能會(huì)永遠(yuǎn)消失。plastic英/?pl?st?k/釋義：[n.]塑料例句：Weshouldstopusingplasticbags.我們應(yīng)該停止使用塑料袋。pollution英/p??lu:?n/釋義：[n.]污染例句：Airpollutioncomesfromtraffic.空氣污染來自交通。protect英/pr??tekt/釋義：[v.]保護(hù)例句：Ittellspeopletoprotecttheenvironment.它告訴人們要保護(hù)環(huán)境。solarsystem釋義：太陽系例句：Thesolarsystemisasmallpartoftheuniverse.太陽系是宇宙的一小部分。factfile釋義：事實(shí)檔案例句：Thisfactfiledescribestheeffectsofclimatechangeonhealth.本期事實(shí)檔案介紹氣候變化產(chǎn)生的健康影響。becoveredby釋義：被……覆蓋例句：Thegroundwascoveredbyathicklayerofsnow.地面被一層厚厚的雪覆蓋了。asfarasweknow釋義：據(jù)我們所知例句：Asfarasweknow,theearthistheonlyplanetwithlifeonit.據(jù)我們所知，地球是唯一有生命的行星。sealevel釋義：海平面例句：Thesealevelwillriseaswell.海平線也會(huì)上升。what'smore釋義：更重要的是例句：What'smore,Icouldn'tsleepaswellasusual.更重要的是，我睡得不像往常那么好。provide...with...釋義：提供；供應(yīng)；給予例句：Theforestprovidesmanyanimalswithfood.森林為很多動(dòng)物提供食物。plasticpollution釋義：塑料污染例句：Jackson,aged17,hasalwaysbeenawareoftheissueofplasticpollution.17歲的杰克遜，一直能意識(shí)到塑料污染的問題。chemical英/?kem?kl/釋義：[n.]化學(xué)制品；化學(xué)品例句：Thischemicalwillmakeyouwantmoresweetthings.這種化學(xué)物質(zhì)會(huì)讓你想要更甜的東西。groundwater英/?gra?ndw??t?(r)/釋義：[n.]地下水例句：Itisveryeasytopollutegroundwater.地下水很容易被污染。burn英/b??n/釋義：[v.]燃燒；燒例句：Everyyear,hillfiresburnalotoftrees.每年山火都會(huì)燒毀很多樹。oil英/??l/釋義：[n.]石油；原油例句：ThereisnotmuchcoaloroilonEarth.地球上沒有多少煤或石油。gas英/ɡ?s/釋義：[n.]天然氣例句：Coal,oil,andgasarefuels.煤、石油和天然氣都是燃料。harmful英/?hɑ?mfl/釋義：[adj.]有害的例句：Eatingtoomuchisharmfultohealth.吃得太多對(duì)健康有害。website英/?websa?t/釋義：[n.]網(wǎng)站例句：Notallwebsitesaresafeforstudents.并不是所有的網(wǎng)站都對(duì)學(xué)生安全。own英/??n/釋義：[adj.]自己的；本人的例句：Wecelebrateourownbirthdays.我們慶祝自己的生日。cutdown釋義：砍倒例句：Whydopeoplecutdowntrees?人們?yōu)槭裁纯撤淠?？emperor英/?emp?r?(r)/釋義：[n.]皇帝例句：Theemperorwalksdownthestreet.皇帝走在街上。hunt英/h?nt/釋義：[v.]打獵例句：Healsolearnedtohuntandmakemeals.他還學(xué)會(huì)了狩獵和做飯。war英/w??(r)/釋義：[n.]戰(zhàn)爭例句：Becauseofwars,manypeoplearehomeless.由于戰(zhàn)爭，許多人無家可歸。sandstorm英/?s?ndst??m/釋義：[n.]沙暴例句：Thesandstormiscoming!沙塵暴來了！solution英/s??lu:?n/釋義：[n.]解決辦法例句：Soitisbesttofindasolutionassoonaspossible.因此，最好盡快找到解決方案。blow英/bl??/釋義：[v.]刮；吹例句：Itwouldblowwiththewind.它會(huì)隨風(fēng)飄揚(yáng)。generation英/?d?en??re??n/釋義：[n.]（統(tǒng)稱）一代人例句：The