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(fēng)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。