Back-drops
(back-drop 的复数) n. 反摔
🧩 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. 药水, 滴剂\\n[化] 滴剂
🗣️ 情景例句
He appeared ill at ease at the party.
他在宴会上显得很拘谨。
Let me think it over,and I'll let you know later.
让我考虑一下，回头再告诉你吧。
Instruments have been devised and can be so placed that all three elements can be recorded in different graphs.
已经设计出了一些仪器，它按照一定的安放方式就可测绘出这三种运动的曲线图。