Tetronate
4-羟[基]乙酰乙酸内酯
🗣️ 情景例句
Do you sell foreign literature?
这儿有外国文学读物卖吗？
He has lived here for a year.
他在这儿住了一年。[持续到现在的行为]
That fits the puzzle! It must be him!
这符合谜底，肯定是他。