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| managed to do 只存在于过去,同was able to | can/could 只有2个时态 | be able to 可变换多时态 |
|---|---|---|
| 过去想方设法做,且也做到了,主动的带着强烈意愿的去做。 | could 只能表达过去有能力做,can 可以表推测,允许。 | was/were able to 有能力做并成功做到了,be able to 主要配合多时态的使用 |
| The officer in the control tower | was very angry | when he heard the news, | because balloons can be a great danger to aircraft. |
| 军官在控制塔内 | 很生气 | 当他听到这个消息的时候 | 因为气球对飞机来说是一个巨大的危险。 |
| 主语 + 系动词 + 表语 | 时间状语从句 | 原因状语从句 | |
| keep track of 跟踪,追踪 | lose track of 失去联系 |
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| make for 导致、前往... | make out 弄清楚... |
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| He escaped prison, and was making for the coast. 他逃离了监狱,正向海边走去。 | I couldn't make out what she was saying. 我听不清她在说什么。 |

| make out | 写出,填写(相当于 write out) | He made out a cheque of 1,000 dollars and gave it to the secretary. |
|---|---|---|
| (勉强)看出,辨认出,听出,理解 |
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| make up | 编造,捏造,虚构 |
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| (给…)化妆/化装 |
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| make up for | 补偿,弥补 |
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| make for | (匆匆)走向,向…前进 | While the thief was making for his car, a policeman stopped him. |