Bivalent chromosome
[医] 二价染色体
🧩 词语组成解析
a. 二价的\\n[化] 二价的
chromosome
['krəuməsəum]
n. <生>染色体;
🗣️ 情景例句
when Susan and Richard were babies?
当Richard和Susan还很小时？
Knowledge without practice makes but half an artist.
只有知识而无实践，只能造就半瓢水的艺术家。
She kept it tied to a tree in a field during the day and went to fetch it every evening.
白天，玛丽把羔羊拴在地里的一颗树上，每天晚上把它牵回家。