A notice was placed by the river bank warning people to keep off the thin ice.
A notice was placed by the river bank warning people to keep off the thin ice.
河边有一个布告牌，警告人们不要在薄冰上行走。
A notice was placed by the river bank warning people to keep off the thin ice.
河边有一个布告牌，警告人们不要在薄冰上行走。