Some relative clauses in the contract have to be amended owing to the unexpected situation.
由于这种难以预料的情况,合同中的有关条款不得不做些修改。
We enjoy staring at them, entranced as they go about their business, unaware (we hope) of our presence.
我们喜欢入迷地看它们做事,它们不知道(但愿如此)我们就在它们身边。