常用用法n. (名詞)lifetime的基本意思是“一生,生存期”,指人從出生到死亡的一段時(shí)間,也可指某物〔事物〕存在的整個(gè)時(shí)期。 lifetime在句子中有時(shí)也可以單獨(dú)使用,不需用介詞。 返回 lifetime詞語辨析n. (名詞)下面三句所表達(dá)的意思不同:His grandma never travelled by air in her lifetime.他祖母一輩子都沒坐過飛機(jī)旅行。(表示一輩子沒乘過)His grandma has never travelled by air in her lifetime.至今他祖母還沒有坐過飛機(jī)旅行。(從出生到現(xiàn)在不曾坐過)His grandma said she had never travelled by air in her lifetime.他祖母說她從沒坐過飛機(jī)旅行。(從出生到說話時(shí)還未坐過) 返回 lifetime