6? 10?, ?????? ‘??(丫丫)’? ??? ???? ?? ????? ???? ??. 6? 6?, ??? ????? ??? ????(領(lǐng)航鯨) ???? ??? ????? ? ?? ?????. ???? ??? ??? ??? ? ‘??’? ??? ? ????? 6? 10? ????. ??? ??? ‘??’? ??? ??? ??? ? ????? ??? ??? ??(???).