Carboxylates
羧化物; 羧化物
🗣️ 情景例句
It is a great idea,
这是个极好的主意。
The better the day, the better the deed.
日子越美好，事业越顺当。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。