He affixed the picture to the wall with a thumbtack.
他用图钉把图片钉到墙上。
The thumbtack pricked his index finger.
大头针扎了他一下手指。
I press the thumbtack into the board with thumb.
我用大拇指将图钉按在木板上。
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。
"Ouch!" cried the principal. "There is a thumbtack in this chair!"
“哎呦！”校长叫道，“这把椅子上有个图钉！”
Someone pulls the thumbtack out of the tire, which makes it hard for the owner to find where the hole is.
有人按了图钉再拔下来，这样车主找不到窟窿在哪儿，补胎时更困难。
Someone pulls the thumbtack out of the tire, which makes it hard for the owner to find where the hole is.
有人按了图钉再拔下来，这样车主找不到窟窿在哪儿，补胎时更困难。
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