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》

If any of the manufacturing plants reject or fail to process an order, then the complete manufacturing process for the batched orders is revoked, and the system notifies the customer of the problem.

如果任何一家制造厂拒绝或无法处理订单，那么这批订单的整个制造流程就会撤消，并且系统会向客户通知这个问题。

youdao

Failure to do so might render your machine unusable, as it will reject even the root user if the NIS system fails.

未能这样做将可能导致计算机不能使用，因为如果NIS系统失败，甚至会拒绝root用户。

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A small number of colleges -- perhaps about twenty nationally -- reject the traditional grading system.

VOA: special.2009.03.05

In the case of palm-reading, though, you can also register both a right and left hand -- as you can see in our video below, the system will most certainly reject you if you offer the wrong one.

ENGADGET

According to the doctors, the bone marrow cells could re-educate the immune system so it wouldn't reject the hands.

CNN: Pastry chef receives double hand transplant

The second way, he continues, is to reject America's democratic system and convert to Islam.

BBC: 'Embrace Islam' Bin Laden urges