watch your language.说话注意点。
watch your mouth:说话注意点
watch your tongue:说话注意点。
Watch your tongue and act like a
lady.
说话注意点,行为检点一下。
Watch your mouth or I"ll tell you
where to get off!
说话注意点!否则我要好好教训你!(告诉你在哪儿下车)
Control yourself and watch your language!
克制一下!注意你的语言!