Epitrochoid
[机] 外转轴线
🗣️ 情景例句
but there must be a way
但总该有一个办法
We usually deal on a 20% trade discount basis with an additional quantity discount for orders over 1000 units.
我们通常给予20%的商业折扣，外加订货1000件以上的数量折扣。
It was getting very windy in the hills.
山上还刮起了大风。