By surprise
出其不意
🧩 词语组成解析
by
[baɪ]
prep. 在…旁边;表示方式;由于;经过;
adv. 经过;表示保留或保存时用;短暂拜访;
🗣️ 情景例句
We have brought this transaction to a successful conclusion.
我们已成功地达成了协议。
Perhaps I can sneak out of the classroom unnoticed.
也许我可以神不知鬼不觉地溜进教室。
Can she type this letter for me?Ask her please.
她能为我打一下这封信吗？请问她。