... passive e voice 被动语态 present t progressive 现在进行时 present t simple 一般现在时 ...
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present t progressive
现在进行时
以上为机器翻译结果,长、整句建议使用 人工翻译 。
T here are cases, however, where these two forms are not interchangeable in that the present perfective progressive has also the meanings of continuousness, temporariness and incompleteness .
但是,由于现在完成进行体还带有进行体的持续性、暂时性和未完成性的含义,有时就不可以与现在完成体互换使用。比较。
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