primary feather 初级飞羽
flight feather 飞羽
wing feather 翅羽
1. The bird's primary quill was slightly damaged after the storm.
风暴过后，这只鸟的初级飞羽受了轻微损伤。
2. Ornithologists carefully examined each primary quill to identify the species.
鸟类学家仔细检查了每一根初级飞羽以识别该物种。
A: Did you notice the broken primary quill on the eagle?
A：你注意到那只鹰身上那根折断的初级飞羽了吗？
B: Yes, it might affect its ability to fly properly.
B：是的，这可能会影响它正常飞行的能力。
1) 鸟类学专业术语，指初级飞羽。
2) 描述鸟类翅膀构造的关键词汇。
3) 与次级飞羽相对的飞行羽毛。
1. 初级飞羽
e.g. The eagle's primary quill is essential for flight.
老鹰的初级飞羽对飞行至关重要。
noun phrase
1. One of the primary flight feathers of a bird's wing, which is essential for flight control.