单词class mark
un.: 组标;分类业务标示;组号网络: 学号
组号
分类业务标示
组标
I was sick yesterday and I couldn"t teach my class. Mark had to take my place.
昨天我病了,没法教课,是他,马克带我上了课。
if class mark still exists , don t adopt any step again.
如果班痕依然存在,勿再采取任何步骤。