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