1. 养宠物 keeping pets

造句联系：养宠物在很大程度上可以充实业余生活，而且还有助于培养保护动物的习惯。

参考答案：Keeping pets can largely enrich one's spare time ，beneficial to develop habits of protecting animals.

2. 整形手术 plastic surgery

造句练习：科技的发展, 手术成本的降低，使整形手术走进普通人，但是不能否认整形手术对于健康有一定程度的危害。

参考答案：Plastic surgery becomes available for average people due to better technology and less cost for operation; nevertheless, it is undeniable that the surgery will , to a certain degree, produce side effects on health.

3. 集邮 collecting stamps 或者philately

造句练习：现在，许多传统的爱好在逐步消失，例如集邮。

参考答案： Today, a large amount of tradition has gradually disappeared, for instance philately.