✔ 最佳答案
If you're mature and prepared enough to get married, then this should not be an issue.
"Mom and Dad, Lee and I want you to know that we are engaged. We're planning a wedding for April 2017/next summer/sometime in the next year. We hope we have your blessing."
If they are negative about it, just shrug and say, "Sorry you feel that way." Do not defend your engagement, do not beg them to see it your way, do not argue with them, do not engage in conversation about it. Just say "Sorry you feel that way" or "We're happy with our decision" and nothing more.
If they get REALLY hostile, politely say goodbye and then leave the house/hang up the phone.
If the issue here is that you live with them, then you should consider moving out - or at least have a plan in place in case they kick you out (move in with your fiance, move into a hotel until you can afford your own place, or move into an apartment with a friend) - before you tell them, if they're going to make your life a living hell over it.
But most parents are not going to object over an engagement unless there's a legitimate reason why. If the issue here is that your parents disapprove because one/both of you do not have a degree and/or a job; if you are drowning in debt; if your partner is violent or controlling; if you barely know each other; etc., then you should put some stock into their opinion. Your parents would not be doing their jobs as parents if they blindly supported your engagement, rather than spoke up about pressing concerns.
But if they are objecting solely because of a bigoted reason - if your fiance is of a different race or religion than you, or if you're a same-sex couple - then you need to sit down and really think about whether you want to keep such people in your life. If you're getting married then your spouse needs to be your number one priority, and you cannot allow friends or family to treat your spouse badly ... they need to show your spouse a basic level of respect and civility, otherwise your marriage won't work.