Meaning: I would like the birds to continue singing for as long as possible.
Choice of Words: "Wish" expresses a desire for something to happen, and "forever" means for an无限长的时间.
Alternative Expressions
I hope they sing for a long, long time.
Meaning: This means that you want the people who are singing to keep singing for a very long time. It's like saying, I would like them to continue singing for as long as possible because I enjoy it so much.
Choice of Words:I is the speaker, hope is a desire, they refers to the people who are singing, sing is the action, for indicates duration, a is an indefinite article, long is a measure of time, and time is the period during which something happens. When you put them together, "I hope they sing for a long, long time" expresses a desire for the singing to continue for an extended period.
May their voices never cease to enchant us.
Meaning: This means that you want the people who are singing to never stop singing because their voices bring you so much joy and wonder. It's like saying, I hope they keep singing forever because their voices make me feel so happy and amazed.
Choice of Words:May is a modal verb that expresses a wish or desire, their refers to the people who are singing, voices are the sounds they produce when singing, never means not ever, cease means to stop, to indicates purpose, and enchant means to delight or fascinate. When you put them together, "May their voices never cease to enchant us" expresses a wish for the people who are singing to continue singing and captivating the audience forever.