“得自”的英语？

如果你不等导游带领而进入山洞, 你就得自担风险.If you go into the cave without waiting for the guide, you do it at your own risk.许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.Many groups can be added by nucleophilic substitution on a diazonium salt.人体连续不断地产生热, 这种...