Kenopliotron
[電] 兩極, 三極混合管
??? 情景例句
We were exposed to the latest theories on child care.
我們接觸過有關(guān)幻兒保育的最新理論。
Do you often study history on Saturday?
你常常在星期六學歷史嗎？
Sorry. It's at home. But you can buy one in the shop.
對不起，我的格尺在家里。你去商店里買一個吧。