吃了钡之后能把异物显示出来。 The foreign body can be shown up on a barium swallow.
除鲠器，食管探子纤细而可弯曲的长圆棒，其一端有一小片海绵或毛撮，用来去除喉部或食管的外来异物或给喉部或食道上药 A long, slender, flexible rod having a tuft or sponge at the end, used to remove foreign bodies from or apply medication to the larynx or esophagus.
她的手指肿胀是手指内有异物引起的。 The swelling on her finger was caused by a foreign body in it.
