Smf
abbr. 系统管理程式（system management facilities）
🗣️ 情景例句
So I thought you might like it.
所以，我想你可能会喜欢这个。
To hover
盘旋
Lake Baikal is the deepest of all the lakes in the world.
贝加儿湖是世界上最深的湖泊。