Secretary of defense
n. 国防部长\\n
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
You know they say,Love your wife, Love her dog.
你知道吗？他们说“爱屋及乌”。
I got my leg broken.
我跌断了脚。
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。