39.靠近 be close to

Unit Ten It’s a nice day, isn’t it?

38.全年 all year round

37.在更自然的环境里 in a more natural environment

36.在白天 during the daytime

35.夜狩 night safari

34.不管 还是；whether or

33.做某事有困难 have some problem doing

32.三分之一 one third

31.四分之三 three quarters

30.超过 多余 more than