单元：List-40.txt

• somehow
• though
• become
• precious
• authority
• vain
• instead
• afterward(s)
• ashamed
• danger
• childhood
• mistaken
• fetch
• drag
• chat
• kilo
• public
• offer
• explain
• cigarette
• bother
• emergency
• eyesight
• suggestion
• entire
• sleep
• dust
• beg
• mobile
• benefit
• ready
• invent
• sensitive
• some
• whichever