Safa
abbr. solar-array failure analysis 太阳排列故障分析; soluble-antigen fluorescent antibody 可溶性抗原荧光抗体
🗣️ 情景例句
and he made the weekend very easy for us to enjoy.
使得我们的周末过得非常轻松愉快。
What's your nationality?Are you a Chinese?
你的国籍是什么？你是中国人?
I'm reading a book.
我在读书。