thumb,拇指，tack,大头钉。

1. I press the thumbtack into the board with thumb.

我用大拇指将图钉按在木板上.

来自《简明英汉词典》

2. The thumbtack pricked his index finger.

大头针扎了他一下手指.

来自英汉文学 - 廊桥遗梦

3. He pinned up the notice with a thumbtack.

他用图钉将通知挂起来.

来自辞典例句

4. " Ouch! " cried the principal. " there is a thumbtack in this chair. "

“ 哎哟, ” 校长叫道, “ 这把椅子上有颗图钉. ”

来自互联网

5. I worry that Microsoft is introducing Thumbtack at a bad time.

我担心,微软推出了图钉在一个坏的时间.

来自互联网