贝蒂蹲坐在地板上。Betty hunkered down on the floor.猫儿蹲坐在倒放的板条箱上.The cat was sitting on an upturned crate.在树荫之下, 她蹲坐在地上.Under the shade of a tree, she squatted down on the ground....
He sat down and sugared and stirred his coffee.他坐下来，在咖啡中加糖并搅拌。They sugared trees to catch moths.他们在树上撒糖捕蛾.The roads had been cleaned of snow, but the roof tops , grass and trees were still sugared white.道路上已无积雪, 但屋顶 、 草地...
通过薄层色谱试验表明,茜草藤的正丁醇萃取液在硅胶板上可分离出清晰的7个斑点.Conclusion 7 spots were clearly distinguishable on the TLC plate.结果盐酸乙胺丁醇 、 利福平、吡嗪酰胺和异烟肼均具有良好的色谱行为.Results Ethambutol hydrochloride, isoniazid, pyrazinamide and rifampicin all had go...