Epitrochoid
[机] 外转轴线
🗣️ 情景例句
In any case, you should prepare for the worst.
无论如何你要做好最坏的打算。
We are always willing to cooperate with you and if necessary make some concessions.
我们总是愿意合作的，如果需要还可以做些让步。
Fifteen minutes passed and then, at five to twelve, the clock stopped.
15分钟过去了，而就在11点55分时，大钟停了。