at sb.’s service
听某人吩咐… Read the rest
听某人吩咐… Read the rest
医 [动脉]粥样坏死… Read the rest
医 筛孔防已… Read the rest
化 原子核分裂… Read the rest
化 衬里材料… Read the rest
医 [心]房… Read the rest
计 性能说明, … Read the rest
*[ә’tenʃәn]
n. … Read the rest
医 稀枸橼酸铵溶液… Read the rest