Ddi
abbr. 深度偏差指示器（Depth Deviation Indicator）
🗣️ 情景例句
He's unwilling to accept advice.
他不愿接受劝告。
The first several months were a difficult time.
所以头几个月过得有些艰难。
The guest who arrives half an hour too soon is the greatest nuisance.
客人提前半小时到达是令人讨厌的。