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- He vainly tried to mark the defacing stain out. 他试图除去有损外观的污迹，但没有成功。
- A constant, variable, function name, or expression. 一种常数、变量、函数名或表达式。
- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- The prices are variable, shop around by all means. 价格高低不一，所以一定要货比三家逐店选购。
- The temperature was a variable in the experiment. 在该实验中温度是个变量。
- Her school work isn't quite up to the mark. 她的功课不大符合要求。
- That was just a lot of hot air what Mark said. 马克所说的不过是一大堆空话。
- War has left its mark on the country. 战争给该国留下了不可磨灭的痕迹。
- A finite increment in a variable. 变量增量变量的有限增量
- The public scandal left a black mark on his career. 这一尽人皆知的丑闻给他的事业留下了污点。
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- How much do you know about the works of Mark Twin. 马克。吐温写的作品你知道多少？
- Winds are mainly light and variable. 风力较弱，风向多变。
- Happy anniversary, Helen and Mark! 海伦、马克，祝你们结婚周年快乐！
- Mark and Barbara are going together now. 马克与巴巴拉现在正在谈恋爱。
- A programmed time delay of variable duration. 暂停，展宽一种由程序设置的可变持续时间的时间延迟
- Mark has lost his job and is worse off than ever. 马克的工作丢了，情况比以前更糟。
- He rubbed out the mark on his book. 他把他书上的记号擦掉了。
- Has she ever written a letter to Mark? 她曾经写信给马克吗？
- Everyone knows Tom as an easy mark. 大家都知道汤姆是个容易上当受骗的人。
