fault/fɔːlt/
n.1. 过失，过错Who broke the cup? It's my fault, I dropped it.谁把杯子摔了？这是我的过错，我摔的。
That's no fault of his.这不是他的过错。
The fault lies with me, not with you.这是我的责任，不是你的责任。
2. 缺点；瑕疵There seems to be some fault in the computer, and we're just looking into it.这台电脑好象有点毛病，我们正在检查原因。
Your only fault is carelessness.你惟一的缺点是粗心大意。
3. 断层