Slaty-backed Gull
灰背鸥;
great-great-great-great aunt
上推曾祖母;
上推四代曾祖母;
as black as one's hat coal-black jet jet-black jetty pitch-black
墨黑的;
as black as one's hat coal-black jet jet-black jetty pitch-black
墨黑的;
as black as one's hat coal-black jet jet-black jetty pitch-black
墨黑的;