来自廖彩源的问题
【.Heisw____inmaths.Hismathsteacheroftenhelpshim.】
.Heisw____inmaths.Hismathsteacheroftenhelpshim.


【.Heisw____inmaths.Hismathsteacheroftenhelpshim.】
.Heisw____inmaths.Hismathsteacheroftenhelpshim.
weak
beweakin在.方面弱