HHT is caused by a mutation either in the endoglin (ENG) gene or the activin receptor-like kinase 1(ALK-1) gene.是什么意思_HHT is caused by a mutation either in the endoglin (ENG) gene or the activin receptor-like kinase 1(ALK-1) gene.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句