command
词根词缀：
词根
mand= to order 命令
command v. 指挥
com 加强 + mand 命令 → 命令 → 指挥
countermand v. 撤销（命令）
counter 相反 + mand 命令 → 反命令 → 撤销〔命令〕
demand v. 苛求
de 加强 + mand 命令 → 一再令人做 → 苛求
mandate v. 命令
mand 命令 + ate 做，造成，使… → 命令
remand n./v. 召回
re 回 + mand 命令 → 命令回来 → 召回
数据来源：新东方英语词汇速记大全
相关例句：
Dividing his command, Morgan assailed both strongholds at the same time
摩根派遣部队同时袭击了两个据点。
'Get in your car and follow me,' he commanded
“上你自己的车，跟在我后面。”他命令道。
Nixon looked comfortable and in command
尼克松看上去镇定自若。
He didn't just command. He personally fought in several heavy battles.
他不仅仅发号施令，还身先士卒参加了几次激战。
The Royal Navy would command the seas
皇家海军会控制所有海域。
The man appeared to be in complete command of himself.
那个男人看上去神态自如。