I took a good gap and a stretch , and was just going to unhitch and start when i heard a sound away over the water 我打了一个呵欠，伸了一下懒腰，刚准备解开绳子打算走的时候，听到远处河面上传来一点声响。
3.
So we unhitched a skiff and pulled down the river two mile and a half , to the big scar on the hillside , and went ashore 于是，我们就解开了一只小舟，顺水划了两英里半路，到了小山边上一处大岩石那儿，就上了岸。
4.
Combining with updated lagrange method , it can well simulate the cementation , slide , unhitch , the formation of new contact and turnaround of present contact 将其与更新的lagrange大变形有限元法相结合，可以很好的模拟微观土颗粒接触面的胶结、滑动、脱开，新接触的形成和老接触的转向。
