Deco
abbr. 直接能量转换操作（Direct Energy Conversion Operation）；降低氧消耗（decreasing consumption of oxygen）
🗣️ 情景例句
If you roughhouse with a cat, you're going to get scratched.
如果你喜欢和猫嬉戏，可能会被爪子抓伤。
That's all for today.
今天就讲到这里。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。