她撕下两格纸巾，然后纵向对折。She tore off two sections of paper towel and folded them lengthwise.他把那沓纸揉得嚓嚓响。He crunched the sheets of paper in his hands.她拿起一张纸，把它哗哗啦啦地塞到打字机中。She took up a sheet and ratcheted it into the typewriter....
煤被干馏后剩下固体残余物:焦炭.Coal is destructively distilled leaving a solid residue, coke.蔬菜在煮之前要浸泡以清除农药残余物.Soak the vegetables to clear the remnant of pesticides before cooking.无生代岩石中不包含有机残余物.Azoic rocks don't contain organic ...