elastic collar

例句：

1. 1. This shirt has an elastic collar that can be adjusted to fit different neck sizes.
   这件衬衫有一个弹性领口，可以调整以适应不同大小的脖子。
2. 2.The policeman wore a tight-fitting elastic collar to keep his hands free.
   警察戴着一个紧身的弹性领口，以便他的双手可以自由活动。
3. 3.She fastened the elastic collar of her coat to keep it from blowing away in the wind.
   她把外套的弹性领口系紧，以防它在风中吹走。