Hematocytometer
血细胞计数器
🗣️ 情景例句
they insisted that I stay.
他们坚持要我留下来。
The accident held the train up for an hour.
那事故使火车延误了一个小时。
It can take as long as eight days to rig up rope ladders and to establish supply bases before a descent can be made into a very deep cave.
有时需要花费整整8天时间来搭起绳梯，建立供应基地，然后才能到一个很深的洞穴里。