Secu
abbr. 标准电子控制单元（Standard Electronic Control Unit）
🗣️ 情景例句
It's no big deal.
这没有什么。
He can only speculate as to which horse will win the race.
他只能推测那一匹在赛马中会获胜。
Such creatures have rarely been seen alive by man as they live at a depth of six hundred feet.
人们很少能看到活着的这类动物，因为它们生活在600英尺深的水下。