Ohl
abbr. overhaul 大修，检修
🗣️ 情景例句
Excuse me, ma'am.
对不起 夫人
Two ears to one tongue, therefore hear twice as much as you speak.
两只耳朵对一舌，故应多听而少说。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。