isthmus of his希: hope氏: family name; surname峡: gorge脑: brain菱脑峡: isthmus of rhombencephalon; isthmus rhombencephali; rhombocephalic isthmus下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:希氏峡,菱脑峡,即可在微信中查询翻译