linger
vi.逗留，留恋徘徊;继续存留，缓慢消失
a taste that lingers in your mouth
口中的余味
orient
vt.使适应;使朝向 n.东方，远东，东半球
a course that is oriented towards the needs of businessmen针对商人需要而开设的一门课程
origin
n.起源，来源，起因[常 pl.]出身，血统
The word is French in origin.这个词原本是个法语词。
original
a.原来的;独创的;原版的 n.原件，原作
The land was returned to its original owner.这块土地归还给了原主。
originate
vi.起源于，来自 vt.创造，创始，开创
How did the plan originate?这个计划最早是怎么想到的?
