在乳胶套顶端剪下一些，并往下拉，使得乳胶套的开口处包裹紧密。

Cut just a little off the top of the seal and pull down so that the opening has a tight fit.

youdao

在乳胶套顶端剪下一些，并往下拉，使得乳胶套的开口处包裹紧密。

Cut just a little off the top of the seal and pull down so that the opening has a tight fit.

youdao