Propanolol
[医]心得安，萘心安，萘氧丙醇安
🗣️ 情景例句
Good. Can we sign them right away?
好的。我们现在可以签合同了吗？
We are not born for ourselves.
人生非为己。
One man was told to fix up an air-line to provide compressed air for the machines they were using.
有个工人被派去安装"供气管"，给他们正在使用的机器提供压缩空气。