Sealed transistor
[计] 密封品体管
🧩 词语组成解析
a. 未知的, 密封的\\n[法] 盖印的, 经盖章批准或证实的, 密封的
🗣️ 情景例句
Hi. I'd like to cash an American Express traveler's check.
嗨，我想兑换美国运通的旅行支票。
She began playing the violin when she was nine.
九岁的时候，她开始拉小提琴。
I know.You must help me do the cooking this afternoon.
我知道。今天下午你得帮帮厨。