Its close resemblance to the medicinal leech caused the mistake to be overlooked until too late.

它非常相似对医用水蛭造成的错误被忽视，直到为时已晚。

youdao

Its close resemblance to the medicinal leech caused the mistake to be overlooked until too late.

它非常相似对医用水蛭造成的错误被忽视，直到为时已晚。

youdao