| 释义 |
biological clockBrE /ˌbaɪəˌlɒdʒɪkl ˈklɒk/NAmE /ˌbaɪəˌlɑːdʒɪkl ˈklɑːk/ noun (specialist) a natural system in living things that controls regular physical activities such as sleeping 生物钟；生理钟◆(figurative) At 35, Kate's biological clock was ticking (= she was beginning to think that she would soon be too old to have children). 到 35 岁时，凯特的生物钟开始滴答作响（开始觉得很快就会年龄大得不宜生育了）。 |