downward shift

• 向下移动

downward shift的用法和样例：

例句

1. Place the cutter against the area to be cut and work downward.
   将刀片置于要修整的部位并向下移动。
2. Again there is change and I become conscious of gray-hooded forms moving downward.
   又出现了变化，我意识到有戴着灰头巾的形象在向下移动。