宁可彻底地练习几种情况，也比蜻蜓点水式地去碰一大堆问题，更为有益。

It is much more helpful to cover a few situations thoroughly than to touch on a larger number.

youdao

宁可彻底地练习几种情况，也比蜻蜓点水式地去碰一大堆问题，更为有益。

It is much more helpful to cover a few situations thoroughly than to touch on a larger number.

youdao