Acetacetate
乙酰乙酸盐(或酯)
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
Brave actions never want a trumpet.
勇敢的行为不须要吹号。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。