Pernio
冻疮
🗣️ 情景例句
Are you used to the weather here?
你已经习惯这里的天气了吗？
Two dogs over one bone seldom agree.
两狗啃一骨，相持难服输。
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。