Choke sth back

choke [tʃok]

vt.& vi. 阻止，扼止;填塞;使窒息;哽咽; n. 窒息，哽咽;拥塞;（车辆发动机的）阻风门;

STH

[医] 生长激素

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;

Please, sit down. What can I do for you?

请坐下。我能为你们做什么呢？

I want to be a journalist after graduation.

毕业后我想当记者。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。