Sedis
abbr. surface emitter detection identification system 地[海]面发射机探测识别系统
🗣️ 情景例句
If you don't apply to the relevant department your passport will never be approved.
如果你不向有关部门申请，你就得不到护照。
It's all my fault.
都是我的错。
The best time to come to China is in spring or autumn.
到中国来，最好的时间是在春天或者秋天。