The patient's immune system would reject the transplanted organ as a foreign object.

该病人的免疫系统会将移植器官作为异物加以排斥。

《柯林斯英汉双解大词典》

The oculist removed a foreign object from his eye.

眼科医生从他眼中除去一个异物。

youdao

When a foreign object enters the eye, profuse tearing results.

当一个外物进入眼睛，就会不停流泪。

youdao

"They actually show a person's body any foreign object attached anywhere in the body, even if it is internally.

VOA: standard.2009.12.30

There are also texts that are going to object to alliances with any foreign king, or subservience to any foreign king, whether it's Egypt or Assyria or Babylonia.

也有的文本会反对,结盟，或者附属于任何外国的君主,无论是埃及，亚述，还是巴比伦的国王。

耶鲁公开课 - 旧约导论课程节选

We don't complain that David used a foreign object against Goliath, do we?

WSJ: Euro 2012: In Greece, A Weekend of Goals and Polls

The second incident related to a "retained foreign object post-operation".

BBC: Devon hospitals report serious surgical errors

The bq500410A achieves greater than 70-percent efficiency, and relies on a unique parasitic metal and foreign object detection feature to safely protect the system and stop delivering power if a metal object is detected between the transmitter and receiver.

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