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N-VAR
（坐、立的）姿勢，姿態
Your posture is the position in which you stand or sit.
例句
You can make your stomach look flatter instantly by improving your posture...
通過采取更好的坐姿，你的腹部馬上就會看起來平坦一些。
Exercise, fresh air, and good posture are all helpful...
鍛煉、新鮮空氣和好的坐立姿勢都很有益。
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N-COUNT
態度；立場
A posture is an attitude that you have towards something.
例句
The military machine is ready to change its defensive posture to one prepared for action...
軍方隨時準備由防御立場轉向備戰立場。
None of the banks changed their posture on the deal as a result of the inquiry.
沒有一家銀行因為這次調查而對該交易改變立場。
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VERB
故作姿態；裝腔作勢；裝模作樣
You can say that someone is posturing when you disapprove of their behaviour because you think they are trying to give a particular impression in order to deceive people.
例句
She says the President may just be posturing.
她說總統也許只是在做樣子而已。