想詢問更專業的英文翻譯，拜託不要是Google翻的很怪，想請專業人士幫我翻成正確句子，謝謝 1.您好，今天想吃什麼 2.主餐加購奶茶可以折抵15元 3.口感是酸酸辣辣的 4.升級成套餐可以選小菜二選一和附贈黑糖冬瓜茶?

1. Hi! what would you gonna eat today?
2. Order a milk tea with the main course will have a $15 discount.
3. It's sour and spicy to the taste.
4. Up-grade to set will serve with a dish chosen within that two and a black sugar melon tea also.

1. What would you like to have (for dinner/lunch/breakfast)? / May I take your order?
2. You can get 15 dollars off when you order main course together with milk tea
3. It tastes sour and hot.
4. By upgrading to combo, you can have one appetiser and a free white melon tea with black sugar. Today's appetisers are xxx and xxx.