36. the figures reached the bottom/a low point/hit a trough.

数字（情况）达到底部（低谷）。

37. a is ...times as much/many as b.

a是b的......倍。

38. a increased by...

a增长了......

39. a increased to...

a增长到......

40. high/low/great/small/ percentage.

比低高（低）