Lactonic
a. [化]内酯酸的, 无水氢氧酸类的
🗣️ 情景例句
and some brushes and some paint.
刷子和油漆。
Excuse me for a moment, please.
对不起失陪一下。
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。