1.
Any of several terns of the genera Anous and Micranous, found in tropical waters and having a dark brown or black color with a white or gray head.
黑燕鸥一种燕鸥黑燕鸥和小黑燕鸥属，发现生长于热带水中，头为白色或灰色，身为深褐色或黑色
2.
Terns now dive in to catch their share.
现在轮到燕鸥俯冲猎取属于它们的一份.
3.
And this is in fact an ideal nesting site.
而这处原是燕鸥的理想营巢地点。
4.
common tern of Eurasia and America having white black and gray plumage.
欧亚大陆和美洲普通的燕鸥，灰羽白背。
5.
Children and sandpipers and terns played at the edge of the water.
海边上，一群孩子和矶鹞、燕鸥一起在水边嬉戏。
6.
a bird that frequents coastal waters and the open ocean: gulls; pelicans; gannets; cormorants; albatrosses; petrels; etc..
经常出现在沿海和远海的鸟；海鸥；鹈鹕；塘鹅；鸬鹚；信天翁；海燕；等。
7.
type genus of the Fringillidae: chaffinch, brambling.
雀科的模式属：花鸡，燕雀。
8.
type genus of the Glareolidae: the pratincoles.
燕珩科的模式属：林鹬。
9.
Where, oats, and the like are cereals.
麦、燕麦等等都属于谷类。
10.
type genus of the Prunellidae.
燕雀类岩鷚科的模式属。
11.
Any of various grasses of the genus Avena, especially A. sativa, widely cultivated for their edible grains.
燕麦燕麦属禾本科植物，尤指野燕麦，因其可食谷粒而广泛种植
12.
FINOSPIRIFER--A NEW GENUS OF SPIRIFERIDAE (BRACHIOPODA) FROM THE LOWER CARBONIFEROUS OF CENTRAL HUNAN
鳍石燕——湖南中部早石炭世石燕族一新属
13.
Any of several Arctic and Boreal sea birds of the genus Stercorarius that harass smaller birds and snatch the food they drop.
贼鸥一种北冰洋及北海地区贼鸥属的海鸟，袭击幼小的鸟类并夺取丢下的食物
14.
Any of several finches of the genera Pipilo or Chlorura, found in the western United States.
唧鵐唧鵐属和黄绿鸥属的雀科鸣鸟，发现于美国西部
15.
Wheat, maize and oats belong to the grain group.
小麦，玉米及燕麦都属谷类。
16.
Wheat and oats are of the same family, but of different genera.
小麦和燕麦是同科的, 但不同属。
17.
Molecular Phylogeny and Evolution of Avena L.
燕麦属物种系统发育与分子进化研究
18.
Any of numerous black, gray, or white sea birds of the order Procellariiformes, especially the storm petrel.
海燕属鹱形目中的一种黑色、灰色或白色的海鸟，尤指海燕