Friends are like fiddle-strings, they must not be screwed too tight.

朋友像琴弦，不能太拧紧。 朋友像琴弦，不能太拧紧。

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It gets worse: If mirror cells acquired the ability to photosynthesize, we'd be screwed.

更糟糕的是，如果镜像细胞获取了光合作用的能力，人类就完蛋了。

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Dial gauge with universal dial gauge bracket must be screwed to the cylinder block and placed against the crank arm.

百分表及通用百分表托架必须通过螺钉固定在气缸体上，位置与曲轴臂相对。

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But, while the Replicator comes mostly assembled, there are still a number of things that have to be screwed, tightened, routed and attached.

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"The prices that producers get don't depend on quality, it depends on whatever can be screwed out of them by the multinational companies, " she says.

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The control for this valve is a rotating crank handle that has to be screwed what feels like a hundred turns to switch from one position to the other.

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