谁能告诉我这样不是更好的做法?

来源: 于 2013-03-07 10:57:23 [旧帖] [给我悄悄话] 本文已被阅读：次

"Hi, you shouldn't have written that equation on your desk. It's agianst the rule. If the teacher had seen it, you could have got a zero on this test."