a sign

例句与用法

Talking loudly on a bus is a sign of vulgarity .
在公共汽车上大声喧哗是一种粗鄙的行为。
Is his appearance a sign of hostility or arrogance ?
他这模样是不是敌对和傲慢不逊的表示呢？
"are you ready?" he made a sign to the man below .
“你们准备好了吗？”他向下面的人作了个手势。
We alighted upon a sign which manifestly referred to billiards .
我们无意中看见一块显然是指弹子房的招牌。
News came that not a sign of the two villains had been yet discovered .
据说始终还没有发现那两个歹徒的踪影。
It is now necessary to introduce a sign convention for radii of curvature .
现在必须介绍曲率半径的正负号规则。
A sign announced the san roque turnoff was a mile and a half ahead .
一块路牌表明圣罗克岔道在前方一英里半的地方。
For a whole year she had waited for a sign of jack and the great castle .
她等待杰克和大城堡的消息已经整整一年了。
Some articles applauded the trend as a sign of liberation for women .
一些文章对这一势头欢呼，称它是妇女解放的标志。
Do what you like under the rose, but don't give a sign of what you're about .
暗中怎样干都行，只是不要露出一点形迹。