P. d.
[医] 棱镜屈光度, 乳头直径, 瞳孔间距离
🗣️ 情景例句
The longer the words the better.
单词越长越好。
Which do you prefer, fishing or mountain-climbing?
钓鱼和登山，你更喜欢哪一个？
at eighty can knock us out, and into our grave.
能到了80岁可能会使我们一蹶不振而进入坟墓。