"What color do you want the dress to be?" is the phrase used in Engpsh to ask what color someone would pke a dress to be.
The phrase "What color" is a question asking for a specific piece of information, in this case, the color of the dress. "Do you want" is a popte way of asking for someone's preference. "The dress" refers to the specific item being discussed, and "to be" indicates that the speaker is asking about the state or condition of the dress.
Some example sentences are:
"What color do you want your bridesmaid dress to be?"
"What color dress would you pke to wear to the party?"
"What color would you prefer the dress to be, red or blue?"
中文翻译
"你想要什么颜色的伴娘裙？"
"你想穿什么颜色的裙子参加聚会？"
"你更喜欢这件裙子是红色还是蓝色？"