Semiannular
a. 半圆形的
🗣️ 情景例句
And there's a phone call for you, Mr. Bennett. Bennett
先生， 有你的电话。
Happy is he who owes nothing.
无债一身轻。
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。