Pre-tr tube
[电] 预-TR管
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
[计] 磁带记录器, 磁道, 磁带驻留, 故障报告
🗣️ 情景例句
Sure, I'll let you take my daughter you, but make sure she is back by 10.
可以，你可以带我女儿出去，但你要保证十点前把她带回来。
This is our most recently developed product.
这是我们最近开发的产品。
Sorry! You look the same!
对不起，你们两个看上去一样。