fall back

[fɔ: bæk]

后退, 退却

例句与用法：

She's completely homeless at least I have my parents to fall back on.

她是真正无家可归--我至少有父母可依靠。

It's always useful to have something to fall back on.

有点依靠的东西总是有用的。

At least we can fall back on candles if the electricity fails.

停电时我们至少可以使用蜡烛。

The enemy fell back as our troops advanced.

我军前进，敌军後退。

详细释义：

ph.

1. 向后跌倒

2. 退却

3. 地位退后, 落后