Grass covering raised the moisture of the soil nearly by 1%, which most reflected the month of precipitation, there was no difference of grass covering in the non-rainfall or less rainfall month.

覆盖能提高土壤水分含量1%左右，但主要体现在降雨月份上，在非降雨月份或少降雨月份覆盖效果不显著。

youdao

Pietersen would have been delighted to win the toss on wicket with a decent covering of grass which he must have thought might offer the seam bowlers some early bounce and movement.

BBC: Dismal England thrashed by India

Last week the company said it was looking at the possibility of giving the grass runway at Land's End airport a hard covering, and that a decision would be made "soon".

BBC: Skybus