See How Two-stroke Engines Work for more information.
更多信息见二冲程发动机工作原理。
Two of five stroke patients have a second attack within five years.
在中风患者中，五分之二的病人五年内会复发一次。
Why is the two-stroke engine widely used on board ship?
为什么是二冲程发动机被广泛使用在船上？
So the Woodman seized his axe, and with one stroke cut the Serpent in two.
于是樵夫抓起斧头，一下子把毒蛇砍成了两段。
Without this the two chambers would balance out in mid-stroke.
没有这两个闸室，就不能为冲程中点起平衡作用。
The tree was rent in two by the stroke of lightning.
雷击把这棵树劈成了两截。
But Napoleon, by a stroke of luck, was able to build two new bridges.
侥幸的是，拿破仑居然突击造起两座桥。
Thus the problem of the difficulty of the startup of a two-stroke motorcycle is solved.
这样，解决了两冲程摩托车启动难的问题。
Thus the problem of the difficulty of the startup of a two-stroke motorcycle is solved.
这样，解决了两冲程摩托车启动难的问题。
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