H factor
[医] 生物素
🧩 词语组成解析
factor
['fæktə]
n. 因素;<数>因子;代理人;
vt. 把…因素包括进去;[数学]分解…的因子，将…分解成因子;以代理商（或管家等）的身份行事，做代理商（或管家）;
vi. 做代理商（或管家）;
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
That fellow never pays his bills on time.
那个男人从没按时付过账。
Shopping, too, is always a pleasure.
买东西也是一种乐趣。