thumb-hole

基本解释

Spandex inner wrist cuff with thumb hole, protecting hands from cold.
手腕袖口内带有弹性的拇指出口，帮助手部抗寒。
Thumb Hole cuffs - The wrist cuffs have a thumb hole, so that the cuffs can be worn over the hand.The sleeves are slightly longer to accomodate that feature.
袖口处的拇指洞-手腕袖口处有个拇指洞，袖子稍长，因此袖口能遮过手臂。
It would be helpful if you put a piece of bowlers tape on the center of your ball (between the finger holes and thumb hole) so that you can watch your ball roll.
为了方便观测球在球道上的运动状态，你可以在球的三孔中心处(姆指孔和其他两孔间)贴上一片胶布。
His strength in a crisis is an ace in the hole.
临危不惧是他的看家本领。
There is a hole in the thumb of his mitten.
他的手套的姆指上有个洞。