Cellula
细胞
🗣️ 情景例句
Was it serious?
病得很重吗？
He is teasing a friend.
他在愚弄朋友。
the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions.
应采取的研究方法是，把有关各方面的材料汇集起来，同时注意任何可能出现的异常情况和条件。