Kilotron
整流管
🗣️ 情景例句
I think New York has all the conveniences--
我觉得纽约具备了一切便利的条件
Every bean has its black.
人人有其缺点。
If the feeding place was away from the sun, the straight part of the wagging dance pointed downward.
如果喂食地点向着太阳，跳舞的蜜蜂在跳摇摆舞时直线部分就一直向上。