Hscs
abbr. hematopoietic stem cells 造血干细胞; hepatic stellate cells 肝星形细胞
🗣️ 情景例句
What else?
还有什么？
Step after step the ladder is ascended.
按部就班，循序渐进。
A little. I go to Chinese classes every week.
一点点，我每周去汉语班上课。