脱口说英语口语生活习语
F-2：fall back on别无选择
A:That's awfully bad. There is no water. A:太糟了，停水了。
B:We have some bottles of mineral water to fall back on. B：咱们还有几瓶矿泉水，必要时可以使用。
A:Thank you for your consideration. A：多亏你细心。