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 need some help.
我需要帮助。
There is no fire without smoke.
无火没有烟。
Why does the idea of progress loom so large in the modern world? Surely progress of a particular kind is actually taking place around us and is becoming more and more manifest.