Sector velocity
[化] 扇形速度
🧩 词语组成解析
🗣️ 情景例句
Well, I almost had a heart attack a few moments ago.
好啦，我几乎要得心脏病了。
You really don't have anything to apologize for.
你真的没什么可道歉的。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。