Dicarboxyl
联羧基, 乙二酸, 草酸
🗣️ 情景例句
It was tough, but I made it. I'm a college graduate.
那虽然不简单， 但我成功了。 我现在是一名大学毕业生了。
The post office is in the middle of the block, You can't miss it.
那邮局就在街区的中间，很好找。
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。