Photosystem
n. [生化]光合体系
🗣️ 情景例句
Never say die.
永不气馁！
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
'Perfume, eh?' he asked sarcastically.
“香水，嗯？”他讥讽地说道，