Blastocyst
[医] 胚泡
🗣️ 情景例句
Look, who's here, Peter!
看，这是谁，彼得！
Better say nothing than nothing to the purpose.
与其说话不中肯，不如一言不发好。
At night, the children always do their homework.Then they go to bed.
晚上，孩子们总是做作业，然后去睡觉。