-
How many wild whooping cranes are there?
还有多少野生的美洲鹤？
youdao
-
Sandhill cranes were used in the experiment because whooping cranes are so rare.
先用沙丘鹤做试验，是因为高鸣鹤实在太罕见。
youdao
-
Sandhill cranes were used in the experiment because whooping cranes are so rare.
先用沙丘鹤做试验，是因为高鸣鹤实在太罕见。
youdao