短语词组用作動詞 (v.)～+副詞strap firmly 系緊安全帶strap on 綁住strap on a wristwatch 帶上手表strap up 用帶子綑緊strap up a suitcase 束住手提皮箱strap up one 's wound 包紥傷口～+介詞strap a bag onto one 's back 用帶子將包綑在背上短語 返回 straps