Osy
abbr. optimum sustainable yield 最适宜可持续产量
🗣️ 情景例句
Pete wrote us and told us.
Pete写信告诉我们的。
I feel blue at the news.
我听到这消息而闷闷不乐。
In his youth, his father and grandfather often told him stories about their family history.
年轻时，他的父亲和祖父常常同他说起他们的家史。