Sigs
abbr. simplified inertial guidance system 简易惯性制导系统; stellar inertial guidance system 天体惯性制导系统
🗣️ 情景例句
but Richard Stewart is here
但Richard Stewart正在这儿，
It is a poor heart that never rejoices.
不知世间有乐者最可怜。
What's up?
有什么事吗？