| 词汇 | on the fly |
| 释义 | on the fly 1. in flight 在空中；在飞行中 * Tom was called out because the catcher caught the ball on the fly. 汤姆被判出局，因为接球员接住了飞来的球。 2. busy 忙碌 * Getting the house ready for the visitors kept Mother on the fly all day. 为了把房子整理好接待客人，母亲忙碌了一整天。 * The housekeeper of our school is always on the fly. 学校管理员整天忙得很。 |
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