lesser scaup

常见例句

Lesser Scaup Aythya affinis, Northern Pintail Anas acuta, and several sea ducks are showing troubling declines, but most geese are increasing dramatically and many ducks have held steady.
一些鸟类如针尾鸭和海鸭等的数量仍然在下降，但是大多数雁类的数量都有了明显增加，很多鸭子的数量也保持稳定。
lesser scaup [duck]
小斑背潜鸭
lesser scaup duck
小斑背潜鸭
This is the lesser evil of the two.
这是两种弊病中较轻的。
Don't waste time on these lesser matters.
别把时间浪费在那些无关紧要的事情上。