| 释义 |
fall back- 撤退，后退，退却：
We charged and the enemy's front line fell back. 我们发起了冲锋，敌人的前线被迫后退。 - 往后倒下，仰面跌倒：
She fell back and hurt her head. 她向后倒下，摔伤了头。 - 失约，食言：
Once he made a promise of help,he would never fall back. 他一旦答应帮忙，便决不会食言。 - 落伍，跟不上，缩减：
Production has fallen back in the last few months. 最近几个月生产一直上不去。 Price will never fall back. 价格绝不会降低。 - (海岸线)后缩
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