例句：
1、He fastened the papers together with a paper clip.
他用回形針別好了文件。
2、 The dog fastened its teeth in his leg.
狗死死咬著他的腿。
3、Fasten the gates securely so that they do not blow open.
把大門閂好以免被風吹開。
4、His hand fastened on her arm.
他用手牢牢抓住她的胳膊。
5、She fastened the belt loosely around her waist.
她把皮帶松松地系在腰上。