they are

基本解釋

They are classified in sorts.
它們是按品種分類的。
《新英漢大辤典》
They are the backbone of the factory.
他們是這個(gè)廠的頂梁柱。
《新英漢大辤典》
They are friends rivaling with each other in technological design.
他們?cè)诠に囋O(shè)計(jì)方麪是互相競(jìng)爭(zhēng)的朋友。

They look like they are sleeping. The suggestions they receive may be able to direct their whole mental energy against pain.
There they are. And, when they are named, they are named by suggestion by the scientist who have isolated them.
它們?cè)谶@，儅它們被起名的時(shí)候，是由科學(xué)家們建議的,那些提取它們的科學(xué)家。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選
And hole in the walls that people don't even know about, and they are just like, they line the streets.
那兒有人們都不知道的小店鋪，它們就像，排列在大街上一樣。
關(guān)於SOHO - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人

They are leaving the sectarian conflict to the Iraqi police and focusing on the insurgency.
NPR: Sectarian Killings Divide Integrated Baghdad Suburb