Back-pressure operation
[机] 背压操作
🧩 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;
🗣️ 情景例句
I plan to leave the present job in order to be able to get into the advertising business.
我想离开目前的工作是为了进入广告业务以寻求发展。
When are you going to swear off cigarettes?
你打算什么时候发誓戒烟？
Has Ian sold his house yet?
伊恩已指他的房子卖掉了吗？