(亦作 downwards)
1- towards a lower place, point, or level向下：
he was lying face downward.
他脸朝下躺着。
1.1
- used to indicate that something applies to everyone in a certain hierarchy or set（某事物）适用于（某一等级制度下的或一群人中的）每一个人：
new rules on sick leave affect employees of all grades, from managers downwards.
新的病假规定影响到经理及其以下所有级别的每一个雇员。
- moving or leading towards a lower place or level下降的, 向下的：
the downward curve of the stairs
楼梯的向下弯曲
a downward trend in inflation.
通货膨胀的下降趋势。
词源
Middle English: shortening of Old English adūnweard.