One way to mark time is to imagine it carries a clock as it moves, and put markers every second.

标记时间的一种方法是,想像它带着时钟运动,并且每秒做一次标记

耶鲁公开课 - 基础物理课程节选

It's not about marriage, and marriage will still seem quite a ways off, I fear, when you read Lycidas, but we will be marking the transition to the poetry of marriage soon enough.

那不是讲婚姻的，我担心当你们读《利西亚斯》的时候，婚姻仍是一个走出的方法，但是我们,将很快标记诗篇中关于婚姻的转变。

耶鲁公开课 - 弥尔顿课程节选

The best way to label this DNA is by designing probes or labels that hybridize with specific sequences that you're interested in.

最好的标记方法是,设计出能与你感兴趣的,特定基因序列杂交的,分子探针或标签

耶鲁公开课 - 生物医学工程探索课程节选

Now if I can stain in some way, if I can somehow label the DNA fragments that I'm interested in, I could find out where those fragments are on this gel.

那如果我有某种染色的方法,对我感兴趣的DNA片段进行标记,我就能知道这些片段在凝胶板上的位置

耶鲁公开课 - 生物医学工程探索课程节选