2. joke n. 无需认真对待的事情;轻松的事;容易的事
例句:Being cold and hungry is no joke.
饥寒交迫可不是闹着玩的。
3. concerned adj. 担心的, 烦恼的, 忧虑的
例句:Naturally we were concerned for him when we heard of the accident.
当我们听到那意外事件时, 自然地为他担忧。
4. recognize vt. 察觉;意识到
例句:He has not recognized the seriousness of the present situation.
他还没有意识到目前形势的严重。
5. alcohol n. 酒, 含酒精的饮料
例句:The law forbids shops to sell alcohol to minors.
法律禁止商店向未成年者出售含酒精的饮料。
6. thoughtful adj. 体贴的, 关心的, 关切的, 周到的
例句:She is thoughtful for her friends.
她很体贴她的朋友们。
7. quality n. 品质, 特征, 特性
例句:Decision is a quality requisite to a commander.
决断是指挥员必须具备的品质。
8. deserve vt.应受, 应得, 值得
例句:He deserves a reward for his efforts.
他积极努力, 值得奖赏。
9. regrettable adj. 令人遗憾的;使人懊悔的
例句:His tiredness caused him to make a regrettable error.
他由于疲劳而犯了个令人遗憾的错误。
10. square vt. 一致,相符
例句:His views on the question do not square with mine.
他对这个问题的看法跟我的不一致。