You're going to have to pull your socks up.
你可得加把劲儿了。
You're going to have to pull your finger out if you want to pass this exam.
如果你想通过这次考试就得多加把劲。
If I wanted to improve the car significantly I would have to pull it apart and start again.
如果我想大大提高这辆车的性能,我就得将它拆开来重新组装。
The idea is that the matter we see does not have enough gravitational pull to keep galaxies together.
VOA: special.2009.07.21
To do that they have to be able to stretch out and they have to be able to pull.
为此,成纤维细胞必须能够伸展,和回拉
Remember in the ion, we're going to have less electrons around to counteract the pull from the nucleus.
还记得在这个离子中,在原子核周围,抵消它吸引力的电子更少。
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