需要怎么用？

what do you want to express

for example like 2 be command of

找本好字典，还要例句多。

sage /ˈjuːsɪdʒ/
N-UNCOUNT Usage is the way in which words are actually used in particular contexts, especially with regard to their meanings. (词在特定语境中的) 使用
例：
He was a stickler for the correct usage of English.
他是一个坚持英语的正确使用的人。

command /kəˈmɑːnd/ vi. 命令，指挥；控制
vt. 命令，指挥；控制；远望
n. 指挥，控制；命令；司令部
n. (Command)人名；(法)科芒 commanding,commanded,commands
V-T If someone in authority commands you to do something, they tell you that you must do it. 命令
例：
He commanded his troops to attack.
他命令他的部队进攻。
例：
"Get in your car and follow me," she commanded.
“上车然后跟我来，”她命令道。

以上来自有道词典，你可以自己去查找