?向性动作
... 颠茄醇酸 tropic acid;tropaic acid 向性动作 tropic action 向性生长运动 tropic growth movement ...
The scene in question comes from the action movie spoof Tropic Thunder and involves the character played by Steve Coogan losing his head.
BBC: Ben Stiller to receive MTV honour
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。