Catecholborane
儿茶酚硼烷
🗣️ 情景例句
Why do you want to work for this organization?
你为什么想加入这个组织工作？
When did you come to see me?
你什么时候来见我？
I counted seven old cars and three old refrigerators.
我数了一下，有7辆旧汽车和3上旧冰箱。