这很管用
This works very well.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
这很管用，很快它就吐了我一脸一枕头。
It worked, right after he vomited all over my face and pillow.
youdao
这很管用，我在后续的8到9个小时睡意全无。
This did effectively allow me to skip the nap. I could stay awake for 8-9 hours straight without difficulty.
有时这很管用。
Sometimes that does the trick.
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