The old man was showing unmistakable signs of senility.老人已老态毕现。He didn't give his name, but the voice was unmistakable.他没留下姓名，但是那个声音是绝不会错的。Her accent was unmistakable.她的口音是很明显的。...
Viruses tend to be good at surviving when a computer system crashes.计算机病毒在系统崩溃后往往依然存在。You need manual dexterity to be good at video games.玩好电子游戏手要灵巧。You have to be good at spotting trouble on the way and heading it off.你...