感谢: (express) thanks, gratitude, grateful, thankful, thanks...
马戏: circus...
无效: not valid, ineffective, in vain...
像样: presentable, decent, up to par...
渺小: minute, tiny, negligible, insignificant...
方向: direction, orientation, path to follow...
伸手: to reach out with one's hand, to hold out a hand, to beg, to get involved, to meddle...
怎样: how, what kind...
独: alone, independent, single, sole, only...
明智: sensible, wise, judicious, sagacious...
