watchful

We need to be more watchful of our children.我们需要更加关注我们的孩子们。

The supervisor keeps a watchful eye on the workers. [=the supervisor closely watches what the workers are doing]这名主管密切关注工人们的一举一动。

The hotel is being built under the watchful eye of its architect.这家酒店是在建筑师的严格监理下建造的。