1、 He balloons his cheeks when he is hesitant、他遲疑不決時(shí)會(huì )鼓起雙頰。
2、 Membership has ballooned beyond all expectations、會(huì )員的增加比預期的要快。
3、 Trade deficits have ballooned、貿易逆差急速增大。
4、 The girl was startled when the balloon exploded、這女孩在氣球爆炸時(shí)吃了一驚。