Phosphorimetry
磷光光度法
🗣️ 情景例句
What was that?
会是什么呢？
A tall tree is struck by lightning.
大树被闪电击中了。
and he estimated that there were more than 2,250,000 in one acre;
他估计每英亩草坪里有225万多只蜘蛛。