It was difficult to maintain a secure foothold on the ice.
在冰上不容易站稳脚。
He gave a longing look at the ice cream.
他看了看那冰激凌，显出很想吃的样子。
I had another helping of ice cream out of pure greed.
我纯粹是因为嘴馋贪吃，又吃了一份冰激凌。
The kids still weren't full, so I gave them an ice cream each.
孩子们还没有吃饱，所以我给他们每人一份冰激凌。
The car skidded on the ice and went straight into the wall.
汽车在冰上打滑，径直撞到了墙上。