| 单词 | fall back on sth |
| 释义 | ☞ fall fall back on sthphr v [t]to use something that you have used before after something new has failed to work （转而）使用; 求助于:◇theatres are falling back on old favourites rather than risking money on new plays. 剧院重新上演人们喜爱的老戏，而不是冒险投资新剧本。 |
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