| alert | |
| 级别 | 第6级 |
| 音标 | [ əˈlɜ:t ] |
| 解释 | adj.机警的，活泼的，机灵的；vt.使...警觉 |
| 英英释义 | quick to see , understand and act in a particular situation |
| 发音 |  |
| 例句 |
1. Drivers must be on the alert for traffic signals. 驾驶员必须密切注意交通信号。 2. The rabbit seems to be very alert all its life. 兔子似乎一生都小心翼翼，十分警觉。 |
