tack

1. N-COUNT A tack or a thumbtack is a short pin with a wide head that you can push with your thumb, especially for a bulletin board. 图钉

...a box of carpet tacks. …一盒地毯钉。

2. N-COUNT A tack is a short nail with a broad, flat head, especially one that is used for fastening carpets to the floor. 平头钉

...a box of carpet tacks. …一盒地毯钉。

3. N food, esp when regarded as inferior or distasteful 粗劣食品[非正式]

4. →see also thumbtack

5. V-T If you tack something to a surface, you pin it there with tacks or thumbtacks. 用平头钉或图钉钉住

He had tacked this note to her door. 他已经把这张便条用图钉钉在了她的门上。

6. N-SING If you change tack or try a different tack, you try a different method for dealing with a situation. 方法[also no det]

Seeing the puzzled look on his face, she tried a different tack. 看到他脸上困惑的神情，她试了一个不同的方法。

7. V-T If you tack pieces of material together, you sew them together with big, loose stitches in order to hold them firmly or check that they fit, before sewing them permanently. 用粗线脚缝

Tack them together with a 1 cm seam. 用1厘米的针脚把它们粗缝上。