32 drag one's feet 行动缓慢；磨磨蹭蹭不情愿
33 draw the line 拒绝，拒不容忍
34 feel down in the dumps 心情不好；情绪低落
35 few and far between 不多；少而分散的；不常碰到或发现的；稀少的
36 fit as a fiddle 身体很健康
37 grin and bear 任劳任怨；毫无怨言地忍受
38 hit the spot （特指吃了食物，喝了饮料之后）精神完全恢复过来或感到满足；恢复精力；提精神
39 keep between the two of us 不让第三者知道，保密
40 know a thing or two about 略知一二