Department of homeland security
国土安全部
🧩 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];
homeland
['həʊmlænd]
n. 祖国，家乡;（南非种族隔离制度下的）黑人住宅区;
🗣️ 情景例句
There's nothing else in the appointment book.
在工作日， 没有别的事了。
I don't know what I should have done without your help.
要不是您的帮助，我真不知道该怎么办。
Were there any telephone messages for me while I was away?
我外出期间有我的电话吗？