pin1/pIn; pIn/n [C]1 a) a short thin piece of metal with a sharp point at one end, used especially for holding pieces of cloth together 别针﹐大头针 b) a thin piece of metal used to fasten things together, especially broken bones〔尤指接骨用的〕钉﹐栓﹐销2 AmE a piece of jewellery fastened to your clothes by a pin [ brooch BrE 【英】]【美】饰针﹐胸针BOBBY PIN, DRAWING PIN, PINS AND NEEDLES, ROLLING PIN, SAFETY PIN
pin2v [T] pinned , pinning 1 to fasten something with a pin 把…别住﹔把…钉住: pin sth to/on etc sth There was a note pinned to the door. 门上钉着一张字条。Pin your name tag on your jacket. 把你的名牌别在夹克衫上。pin sth up I’ll pin these photos up on the notice board. 我会把这些照片钉在告示牌上。2 pin your hopes on sth to hope that something will happen or be successful, because all your plans depend on it 把希望寄托在某事上: She's pinned all her hopes on winning. 她把所有的希望都寄托在胜利上。3 pin the blame on sb to blame someone for something, often unfairly〔不公平地〕怪罪于某人4 to prevent someone from moving because of pressure or weight 使不能动﹔压住: pin sb to/against/under etc sth He was pinned under the car. 他被压在汽车下动弹不得。pin sb/sth down phr v 1 to make someone decide something, or tell you what their decision is 使〔某人〕决定[明确表态]: I couldn’t pin him down to a definite date. 我无法使他定下一个明确日期。2 pin sth down to discover exactly what something is 确切地发现[找到]: Scientists may have pinned down the cause of the disease. 科学家可能已经找到了这种疾病的病因。
PIN/pIn; pIn/also 又作 ˈpin ˌnumbern [C] personal identification number a number you use to take money from a machine using a plastic card〔提款卡的〕个人身份识别号码