Polya
[化] 聚腺苷酸
🗣️ 情景例句
that I wasn't sure.
我说我不能确定。
It's nice to be sitting here with you.
在这里陪你坐着是非常愉快的。[动词不定式的进行时]
'At ten to eight.I bought a paper and waited for the train.'
“7点50分。我买了张报纸，等着车来。”