小心和當心英文翻譯是一樣的。都是 Careful ; Wacth your back ; Take it easy ; Be Carfull

【例句】一、當心，那條狗會咬人。Be careful,that dog bites. -《21世紀大英漢詞典》二、你說話做事都要當心。You must be careful as to what you say or do. -《新英漢大辭典》三、當心，栗刺會刺你手指的。Be careful—the chestnut burs can prickle your fingers. -《21世紀大英漢詞典》。