Cancelllation
n. 取消
🗣️ 情景例句
How much notice of cancellation is necessary to get my deposit back?
想把定金拿回来，要提前多长时间通知你才行？
Things done cannot be undone.
木已成舟。
which is, in fact, much more complicated.
地震波的运动实际比这要复杂得多。