-tract 為動詞字尾，表”拉拖”。
英文相似單字，真的很像以至於我們常常記錯意思，統整與 -tract相似單字如下:
abstract |
v. 拿走; 概括The author has abstracted poems from earlier books. |
attract |
v. 吸引Summer attracts visitors to the countryside. |
contract |
v.合約; 收縮You can contract with us to deliver your cargo. |
distract |
v.使分心Tom admits that playing video games sometimes distracts him from his homework. |
extract |
v.拔出; 摘錄; 榨取He extracted a small notebook from his hip pocket. |
