Well Tom, I hope you have a good time in America. I'll miss you.
就这样了,汤姆。我希望你在美国玩得很愉快。我会想你的。
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.
就如同去伦敦见一位朋友,事先未约定地点,而荒唐地在街上游逛,以期待碰巧遇上一样。