Simu
abbr. stellar inertial measuring unit 天体惯性测量设备
🗣️ 情景例句
No, but I've read enough about it.
不曾，不过我常常读到有关它的报导。
I'm boating at the lake.
我在湖边划船。
I often fish for hours without catching anything.
我经常一钓数小时却一无所获，