Thumb tack test 拇指实验 ; 拇指试验
a thumb tack 图钉
thumb-tack needle for subcutaneous embedding 揿针
Thumb b tack test 拇指实验
同义词： thumbtack drawing pin pushpin
同义词： thumbtack
以上来源于: WordNet
N-COUNT A thumbtack is the same as a . 图钉 [美国英语]
Step Four: along the dotted lines of paper mask edges with a small cone or a thumb tack in the pumpkin skin delineate Facebook. Completed, remove the paper mask.
步骤四：沿纸脸谱的虚线边，用小锥或者图钉在南瓜皮上描出脸谱。完成之后，撕下纸脸谱。
Use a thumb-tack to attach a length of ribbon to the ceiling over your bed or chair.
在你的床或 椅子上方的天花板上用图钉钉上一根较 长的缎带。
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