2. The central unit is a rotary drum . 核心设备是一个旋转的滚筒。
3. Would you become a member of your Rotary club if you were invited to join today? Why or why not? 如果你今天被邀请参与你是否会成为你的扶轮社的一员?为什麽会或为什麽不会?
英英解释
n.
1. a road junction at which traffic streams circularly around a central island
2. electrical converter consisting of a synchronous machine that converts alternating to direct current adj.
1. relating to or characterized by rotation
2. marked by or moving in a circle