Diortho periodic acid
[化] 二原高碘酸
🧩 词语组成解析
periodic
[,pɪrɪ'ɑdɪk]
adj. 周期的;定期的;回归的;间歇的，时而发生的;
🗣️ 情景例句
and then I asked myself,
然后我问自己，
How old are you?
你多大了？
She likes the children to read newspapers and books in the reading room.
她喜欢孩子们来阅览室读书看报。