retainableadj.可保持的(可记住的；可聘请的)retainvt.保持；保留；记住；聘请Retained products of conception受孕产物滞留retaining wall of foundation pit基坑支护Retain their allure to investors继续吸引投资者retaining wall with stepped back踏步式挡土墙retaining differential mechanism制动差动机构Retaining time of control process控制过程持续时间retain varying portions of profit超额利润分成retained austenite transformation残余奥氏体相变retain the remembrance of someone记得某人Retaining rate of enzyme activity酶活保留率

1. A foreign body dwells long in the nose.
   异物长期存留在鼻子内。
2. There were no major complications caused by foreign body ingestion or endoscopic procedures.
   在整个误食异物及实施内视镜取出的过程中没有并发症。