🧩 词语组成解析
fall
[fɔl]
v. 落下;跌倒;减少;沦陷;
n. 落下;瀑布;秋天;减少;
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
We looked at a lot of houses.
我们看了好多房子。
I'm afraid it was a bother for you to do this.
我害怕做这会给你带来麻烦。
Then she introduced us to Carlos and told us they would get married next week'.
然后她把我们介绍给卡洛斯，并告诉我们说他们下星期结婚。”