Physicism
自然科学研究
🗣️ 情景例句
She said if I come by,
她说，如果我去一趟，
I asked you if you wanted some help.
我是问你是否需要帮忙。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。