It was difficult to maintain a secure foothold on the ice.
在冰上不容易站穩(wěn)腳。
He gave a longing look at the ice cream.
他看了看那冰激凌，顯出很想吃的樣子。
I had another helping of ice cream out of pure greed.
我純粹是因為嘴饞貪吃，又吃了一份冰激凌。
The kids still weren't full, so I gave them an ice cream each.
孩子們還沒有吃飽，所以我給他們每人一份冰激凌。
The car skidded on the ice and went straight into the wall.
汽車在冰上打滑，徑直撞到了墻上。