who have made my stay in the United States so wonderful.
是你们使得我在美国的生活如此多采多姿。
I meet the boy whose aunt is a housemaid.
我遇到那个男孩的姑妈是家庭主妇。
would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.