1. And this detail: the body of a duck, a golden-eye and beside it one black-backed gull. 详情是：一只金色眼睛鸭子的躯体，旁边有一只黑背鸥。
2. Slaty-backed Gull seems to be much the scarcest of the big gulls, I have seen only three, these following very cold weather. 大黑脊鸥似乎是台湾可见的大鸥中最稀少的一种，个人只看过三次，都是出现在非常冷的天气之后。
3. Slaty-backed Gull seems to be much the scarcest of the big gulls, I have seen only three, these following very cold weather. 大黑脊鸥似乎是台湾可见的大鸥中最稀少的一种，个人只看过三次，都是出现在非常冷的天气之后。
4. If the asset-backed securities are not adequate, during the period of repurchase, the pledges are eligible to require the bond holders to superadd or replace the asset-backed securities. 如果回购期间出现质押券不足额情况，逆回购方可要求正回购方追加或置换质押券。
5. Dave backed his truck to the pile and we carefully backed the bike down the plank until the back tire hit the higher gravel. 戴夫支持他的卡车向桩，我们仔细支持自行车沿着木板，直到回到轮胎击中更高砾石。
网络释义
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;
