Osy
abbr. optimum sustainable yield 最适宜可持续产量
🗣️ 情景例句
That's a relief.
现在我放心了。
Do you remember the boy whose aunt is an actress.
你是否记得那男孩的姑妈是演员？
I admire you for sticking to your plans.
我佩服你能坚持你的计划。