拴牢

例句：

1. 1. The horse was tethered toa post.
   这匹马被拴在一根柱子上。
2. 2. She tied her shoes with apiece of string.
   她用一条线把鞋系紧了。
3. 3. The thief quicklysecured the door with a padlock.
   小偷迅速用锁把门锁上了。