1 a plastic or glass tube with a needle that is used for taking a small amount of blood out of the body or for putting drugs into the body 注射器 ☞picture at health 见health插图

2 a plastic or glass tube with a rubber part at the end, used for sucking up liquid and then pushing it out （一头带橡皮套的）吸管 ☞picture at laboratory 见laboratory插图