Hematocytometer
血细胞计数器
🗣️ 情景例句
you've included performing arts centers,
你拍了表演艺术中心，
Camping with a group is fun.
大伙露营是趣味横生的事。
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，