1·Tame birds, when approached, will stretch out their necks and ruffle their neck feathering.
驯化的鸟在人靠近时会伸长脖子，竖起脖子上的羽毛。
—— 《柯林斯英汉双解大词典》
2·Giraffes have very long necks.
长颈鹿的脖子很长。
3·Sore necks are very common these days.
最近脖子痛很常见。
4·Swans are dazzlingly white with long necks.
天鹅有长长的脖子，全身是令人眩目的白色。
5·They were content to reach ground again without broken necks, and take the townward track over the hill.
他们又跳回到了地面，并且没有摔断脖子，翻过了山，沿着通往镇上的路走着，他们对此感到很满意。