9. 以免、唯恐
lest
for fear that in case that in case of +名词短语
10.对比
in contrast, by contrast,
in contrast with, by contrast with
in comparison, by comparison
in comparison with
conversely
compared to
11. 经常
all too often
more often
frequently
12. 好
outstanding
marvelous
terrific
splendid
excellent
distinctive
distinguished
13.易于、倾向于
be liable to
be inclined to
tend to
be likely to
14. 努力
make an effort to