We swam upstream against the current.我们逆流向上游游去。A water vole swam vigorously upstream.一只水鼠奋力向上游游去.Alexis suddenly could take no more: he felt too hot, he couldn't breathe, the room swam.亚历克西斯突然觉得受不了了，他感到闷热，喘不上气，仿佛整间屋...
He cut the engine and grabbed the mooring lines.他关掉发动机，抓住系船的绳子。Nicholas untied the boat from her mooring.尼古拉斯把泊船的绳缆解开。However , all the best mooring were occupied by local fishing boats.凡是可以泊船的地方早已被当地渔船占去了....
工程垮掉系环境所迫。The reasons for the project collapsing were circumstantial.为饥饿所迫, 他为极少的工资而工作.Forced by hunger, he worked for the most niggardly pay.他为环境所迫而犯罪.He was forced into crime by circumstances....