thumbtack
US
UK thumbtack n: US (flat-headed pin)
SC 图钉 tú dīng
We're not allowed to use thumbtacks because they leave holes in the walls.
thumbtack [sth] to [sth] vtr + prep: US (attach with a drawing pin)
SC 用图钉钉 yòng tú dīng dìng
TC 用圖釘釘
TC 用圖釘釘
Roger thumbtacked an advertisement for a French tutor to the bulletin board.