短语词组短语methane castrate 甲烷气水包合物parasitic castrate 寄生去势alimentary castrate 营养去势emasculate castrate 用人工异花传粉法去除castrate e 阉割to castrate 阉割castrate mice 去势小鼠a castrate 阉人semi castrate 半阉割 返回 castrate