not protected or watched 无防备的;无警戒的;无保护的 (of a remark, look, etc. )话语、神情等 said or done carelessly, at a time when you are not thinking about the effects of your words or are not paying attention compare guarded不小心的;不谨慎的;不留神的
👨🏻🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
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