Onan
油浸自冷（变压器冷却方式，Oil Natural Air Natural）
🗣️ 情景例句
And you never know
而你永远也猜不到
Poverty shows us who are our friends and who are our enemies.
贫困才能显出敌和友。
It is a harmless bait, but it litters up her desk to such an extent that every time she opens it, loose bits of paper fall out in every direction.
这种习惯无害，只把写字台里堆得满满当当，以致每次打开抽屉总能带出许多纸片四处飞扬。