Secon
abbr. secondary electron conduction orthicon 次级电子导电正析像管
🗣️ 情景例句
I do agree.
我同意。
Americans are hight mobile, and therefore may find it difficult to became deeply involued with other.
美国人的流动性，大，因此你会发现和他人深交很难。
I heard some one laughing.
我听见有人在笑。