Sh.
[医] 血清性肝炎
🗣️ 情景例句
She loves children.
她喜欢孩子。
After dinner sit a while, after supper walk a while.
午饭后要坐，晚饭后要走。
That machine joins these different pieces of metal together.
那台机器把这些不同的金属片焊接起来。