木制路标指向右边。

The wooden ___sign points to the right.

签字的时候需要认真仔细。

You need to be careful when you ___sign.

请在表格底部签名确认。

Please ___sign at the bottom of the form to confirm.

教练对我们做了一个继续前进的手势。

The coach gave us a ___sign to keep moving forward.

枯萎的植物是缺水的迹象。

The wilted plants are a ___sign of water shortage.