err on

US

UK

A1 初級
phr. v.片語動詞寧可…也不要…
It's better to err on the side of caution when dealing with unknown substances.

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多年來最精彩的槍支辯論 (The Best Gun Debate I've Had in Years)

12:03多年來最精彩的槍支辯論 (The Best Gun Debate I've Had in Years)