Refers to an extremely trivial or easily eliminated opponent or challenge; a walkover.
对于经验丰富的团队来说，这个小小的技术难题不过是口中蚤虱，不费吹灰之力就能解决。
For an experienced team, this small technical problem is nothing but fleas and lice in the mouth, easily resolved without much effort.
Era:
Ancient
Frequency:
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