1. To be aware of

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I wasn't even aware that he was ill.

我都不知道他生病了。

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2. To realize

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I realize how difficult it's going to be, but we must try.

我知道这有多困难，但我们必须试一试。

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3. To recognize

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He sadly recognized (that) he would die childless.

他接受了这个悲哀的事实：他将无儿无女、孤苦伶仃地度过残生。

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4. To appreciate

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I appreciate that it's a difficult decision for you to make.

我体会得出，你作出这样的决定有多难。

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5. To acknowledge

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We acknowledged the need for reform.

我们承认改革的需要。

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6. To notice

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I notice you aren't quite convinced.

我感到你还不太相信。

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7. I see

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"I'm tired." "So I see - you've been yawning all afternoon."

“我累了。”“我知道——你整个下午都打哈欠。”

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8. I see what you mean.

含有不太同意对方所说的意思。

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9. fair enough

多用在英式口语里哦，表示你觉得“有道理；做得（或说得）对”。

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I'm just annoyed with him because he's behaved so badly." "Fair enough."

“令我感到不快的是他太没礼貌了。”“说得没错。”

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10. All right./OK.

用在别人说的事情你已经知道了，或者对方已经说过很多次了。

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11. I see/take your point.

或者可以说Point taken，意思是“我明白你的意思”。

其实也隐含了点不同意对方的意思。

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12. I don't blame sb

理解为“我不会怪…；我理解…的心情”。

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I don't blame him for getting angry - she's being really annoying.

我理解他生气的原因——她实在太烦人了。

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13. I get what you mean./I get you.

get可以表示“懂，理解；听见”。

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I told that joke to Sophia, but she didn't get it.

我跟索菲娅讲了那个笑话，可她没有听懂。