1.A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.

1.它咽下比它还的只海底动物并且调节它的胃变得扩起来。

2.Expandable metal stent placement was the most effective therapy for tracheostenosis induced by nodular goiter.Patients with tracheostomy cannula placement were at high risk of severe infection.

2.工气道重建后均可缓解气管狭窄，以气管内支架效果最佳，气管切开套管入次之。