这项新发明能保证啤酒始终保持丰富的泡沫。The new invention ensures the beer keeps a full, frothy head.推广他的新发明一直是件棘手的事情。It's been a tricky business marketing his new invention.这是一项有多种工业用途的新发明.This is a new discovery that had a number of ...
After protracted negotiations, Ogden got the deal he wanted...经过长时间的谈判,奥格登得到了他想要的那笔生意。The struggle would be bitter and protracted.斗争将会艰苦而漫长。We won victory through protracted struggle.经过长期的斗争,我们取得了胜利.The war was protracte...