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1·He had fallen into exhausted slumber.

他已经进入了沉睡。《柯林斯英汉双解大词典》

2·The mold must have fallen into the dish a few days before.

模具一定是几天前掉到盘子里的。

3·The house had fallen into disrepair.

这栋房子已年久失修。《牛津词典》

4·I had fallen into conversation with a man on the train.

在火车上我和一个男人攀谈起来。《牛津词典》

5·They have fallen into poverty.

他们陷入穷困中。

6·My golden ball has fallen into the spring.

我的金球掉进了水潭里。

7·By 2008, the figure had fallen into the single digits.

到2008年，这一数字已降至个位数。

8·The silver must have fallen into the dough by accident.

这些银子一定是意外掉进面团里了。

9·I've fallen into the habits of the solitary; my meals are snatched and random.

我已经养成了独处的习惯；我的饭菜都是随意拿来的。

10·The nest must have fallen into the water, but would the mother desert her eggs?

鸟巢一定是掉进水里了，但母亲会抛弃她的蛋吗？