Stem cells
[医] 干细胞
🧩 词语组成解析
stem
[stɛm]
n. （花草的）茎;词干;（高脚酒杯的）脚;烟斗柄;
vt. 遏制[阻止]（液体的流动等）;阻止;封堵;遏止;
n. 细胞；牢房；小屋；单元格（cell的复数）
🗣️ 情景例句
What language do they speak in Japan?
在日本他们说什么语言？
I ought to write a letter.
我应该写一封信。
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。