| 释义 |
rain·fallBrE /ˈreɪnfɔːl/ NAmE /ˈreɪnfɔːl/ noun [U , sing. ]the total amount of rain that falls in a particular area in a particular amount of time ; an occasion when rain falls 降雨量；下雨◆ There has been below average rainfall this month . 这个月的降雨低于平均降雨量。◆ an average annual rainfall of 10 cm 10 厘米的年平均降雨量arid , climate , continental climate , equatorial , frigid , harsh , humidity , rainfall , tropical , zone |