Secdef
abbr. Secretary of Defense 国防部长
🗣️ 情景例句
Yes. Here's the survey report issued by the Health Office, which is absolutely reliable.
有。这是由卫生检疫所签发的检验报告，它是绝对可靠的。
Burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。
Are you going to ship this by air?
这批货你要用空运的吗？