signs

过去式：

动词过去式: signed

更多词形：

名词: signer | 动词过去式: signed | 动词过去分词: signed | 动词现在分词: signing | 动词第三人称单数: signs |

单词例句：

There's no sign of him mending his ways.

看不出他有改进生活方式的迹象。

The old peasant looked to the sky now and then for signs of rain.

老农民不时望天，看看有无下雨的迹象。

The postman asked me to sign for the parcel.

邮递员叫我签收包裹。

A traffic sign should be conspicuous.

交通标志应该明显。

In order to properly explain these signs of nature, he felt that he must do still more research.

为了适当地解释这些自然特征，他觉得必须做更多的研究。

Towards the end of the marathon several runners showed signs of distress.

马拉松赛接近终点时，有些参赛者显出极难受的样子。

Scientists are studying the photographs of Mars for signs of life.

科学家们正在研究火星的照片，寻求生命的迹象。

Every girl must sign in when she comes back to the dormitory.

每个女生回到宿舍的时候都必须签到。

There are many luminous road signs along the roads.

沿着路有许多夜光路标。