Find a poor conductor of electricity: water, steel, rubber, copper.
譯句：找到電的不良導(dǎo)體: 水，鋼，橡膠，銅。（答案附在文末）
poor /p?r/? ?adj. 貧困的, 貧乏的, 低劣的, (身體)衰弱的, 可憐的
反義詞：adj. rich, fortunate, good
[慣用語(yǔ)]：
poor quality 質(zhì)量差的
poor thing 可憐的人，可憐的家伙
poor service 差勁的服務(wù)
in poor health 身體不好；虛弱
poor soil 貧瘠土壤
[例句]:
??Although they are poor they are happy.
雖然他們很窮，但很快樂(lè)。
??Wood is a poor conductor of sound.
木頭是聲音的不良導(dǎo)體。
??The customers complained about the poor after-sales services.
顧客抱怨售后服務(wù)差。
conductor /k?n'd?kt?/?n. (樂(lè)隊(duì))指揮 , 售票員, 列車長(zhǎng),〈電〉導(dǎo)體
[慣用語(yǔ)]：
bus conductor 公共汽車售票員
electrical conductor 導(dǎo)電體，電導(dǎo)體；電導(dǎo)線
lightning conductor 避雷針
poor conductor 不良導(dǎo)體
[例句]:
? Copper is a good conductor of electricity.
銅是良導(dǎo)體。
??The bus conductor collected money from the passengers.
公共汽車售票員向乘客收錢。
??The conductor worked on the train.
列車長(zhǎng)在火車上工作.
copper /'kɑp?/??n. 銅, 銅幣；adj. 銅的；vt. 鍍銅于
[慣用語(yǔ)]：
copper mine 銅礦
copper alloy 銅合金
copper wire 銅線
copper ore 銅礦石
copper tube 銅管
[例句]:
? Brass is an alloy of copper and zinc.
黃銅是銅和鋅的合金。
? Copper is a good medium for the conduction of heat and electricity.
銅是熱和電的良導(dǎo)體。
答案：rubber
