Back-extractant
[化] 反萃取剂
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
n. [分化] 提取剂；提炼物；分馏物
🗣️ 情景例句
Could you give me more details about your company?
能否给我些贵公司更详细的资料？
Having this new branch means a great deal to the economy of both countries.
这家分行的建立将对两国的经济交流起到很大的作用。
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理，潜水员常常要在水面100英尺以下摸黑工作，