本期内容：
Comparing yourself to someone else is never productive or positive. There's always going to be someone who is younger, prettier, smarter, or richer than you. If you keep coveting what someone else has, then this may cause you to be resentful of them, which will open a whole other negative can of worms. Remember, what they don't have is your whole package. Be appreciative of what you have, because if you want to play the comparison game, remember that there are people who are also worse off than you are.单词及实用短语：
compare … with … 把……和……相比
covet英 [ ˈkʌvət ] 美 [ ˈkʌvɪt ] 贪求，觊觎
resentful美[rɪ'zentf(ə)l],英[rɪ'zentf(ə)l],adj. 感到气愤的;憎恨的;愤慨的
worm英 [wɜːm] 美 [wɜːrm] n.虫；蠕虫v.蠕动；驱虫
appreciative 英 [ əˈpri:ʃətɪv ] 美 [ əˈpriʃətɪv, -ʃiˌetɪv ] 感激的； 有欣赏力的
be appreciative of 感激……
