及物动词
1. He looked at the clock. It marked two.
他看了看钟，时针指向2点。
2. A smile marked her happiness.
笑容表明了她的幸福。
3. Mark carefully how it is done.
注意怎样做。
名词
1. You can see in him the marks of an educated man.
从他身上你可以看到受过教育的人的特点。
2. mark是什么意思
2. Put a question mark at the end of that sentence.
在那个句末划一个问号。