Instantaneous velocity
[化] 瞬时速度
🧩 词语组成解析
🗣️ 情景例句
I think I'm quite proficient in both written and spoken English.
我认为我在英语读写方面相当熟练。
A wise man needs not blush for changing his purpose.
智者不耻于改变初衷。
Spirits labelled 95 proof contain only about 47 percent alcohol.
强度标为95的酒中含47％的酒精。