Throw doubt upon
产生怀疑
🧩 词语组成解析
throw
[θro]
vi. 投掷;丢;抛;
n. 投掷的距离;丢;
vt. 掷（色子）;抛;猛动（头、臂、腿）;使处于，使限于;
upon
[ə'pɑn]
prep. 在…上面;当…时候;
🗣️ 情景例句
You can't take her promises seriously, she never keeps her word.
她答应的事不用当真，她说话从来不算数。
If I went with you,I'd have to be back by six o'clock
如果我与你一起去了，我将不得不在6点钟回来。
Good afternoon, class! Who's on duty today?
同学们，下午好！今天谁值日？