Tiān qíng bù kāi gōu, yǔ lái dàochù liú.

天晴不開溝, 雨來到處流。

Lit [If, when] the weather is fine, ditches are not dug, [when it] rains, water [will] run everywhere.

Fig Make preparations well in advance. “Prepare for a rainy day.”

Note [Rhyme; see also qíng gān kāi shuǐdào above.]

Topics PREPARATION rhyme