Dynamooil
[机] 电机油
🗣️ 情景例句
Maybe we'll all care now.
也许我们大家现在都关心起来了。
What we lose in hake we shall have in herring.
失之东隅，收之桑榆。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。