Phalamycin
亮霉素
🗣️ 情景例句
That's only part of it.
这只是一部分原因。
How's your brother?
你的兄弟好吗？
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。