如果你想表达"他们没尝过美味"的意思，你可以说：
"They haven't tasted something depcious."
"They haven't experienced the depciousness."
"They haven't had the opportunity to taste something depcious."
请注意，如果你想表达"他们没有尝试过美味"的意思，你可以说：
"They haven't tried something depcious."
"They haven't sampled something depcious."
希望这些短语能帮到你！