Cause I'm not supposed to talk to you without a guardian present.监护人不在场的情况下我不能跟你谈话

suppose:应该;假设；假定；认为；想

词语用法:

1.suppose后可加that引导的从句，且句中that可省略。

I suppose (that) he is about forty.

我猜他大概四十岁。

2.suppose和supposing在句子中常表示一样的意思。但suppose在句子开头属于祈使语气，而supposing是现在分词，且美国人比较少用supposing；

Suppose he is absent, what shall we do?

Supposing he is absent, what shall we do?

假设他缺席了，我们要怎么办？

3.suppose有时指“建议”。

Suppose you come to my house tomorrow morning, and I will show you all my books.

我建议你明天早晨来我加，我会把我所有的书都展示给你看。

And since the blood on that anklet doesn't match the guy who's locked up.而脚链上的血迹与嫌疑人的血样不吻合

lock up:上锁； 封锁； 监禁； 禁闭

The convicts were locked up in their cells.

犯人们被监禁在自己的牢房内。