Quarternary structure
[化] 四级结构
🧩 词语组成解析
[计] 四元的
🗣️ 情景例句
and tell him we'll see him in a couple of months.
告诉他过几个月我们再去找他。
Mother's darlings are but milksop heroes.
奶水泡出懦弱汉。
How old are you?
您多大岁数了？