Haemacytometry
血细胞计数法
🗣️ 情景例句
it's a good picture.
那是一张好照片。
I asked him to fix it for me, but he wouldn't.
我请他帮我修理，但是他不肯。
and we know something of the great variety of the sea bed's topography.
而且我们对海底地形的千变万化也有了一定的了解。