叶伟2050
sob [s�0�0b] vt. & vi. 哭泣; 啜泣 The child started to sob when he couldn't find his mother. 孩子因找不到他妈妈哭了起来。 vt. 哭诉; 呜咽地说 She sobbed out the story of her son's death. 她哭诉着她儿子的死。 n. 啜泣(声); 呜咽(声) She nodded with a sob. 她啜泣着点了点头。

michelle850322
LB培养基是通常所说的肉汤培养基,SOB的英文来源是Super Optimal Broth,大概的意思是优化肉汤培养基。两者基本都是肉汤培养基,而SOB营养成分更好些。