Permactron
双注电子波管
🗣️ 情景例句
It was a gradual process, involving many factors.
这是个渐进的过程，涉及到方方面面。
Business before pleasure.
事业在先，享乐在后。
Don't ask me, sir. I only laid the table.
别问我，先生。我只是摆桌子。