Slipup
n. 错误, 疏忽, 不幸
🗣️ 情景例句
But first in the school-rooms.
但首先是在教室 。
Then we'd have some idea of what you'll be needing.
那么我们就会心中有点儿数，知道你们需要什么了。
Should we invite Susan to the party?
要请苏三参加舞会吗？