Cheap truffle oil often hasn't been anywhere near a real truffle.

便宜的松露油常常与真正的松露不沾边儿。

And that's Loter ravioli in a black truffle oil.

这是黑松露菌油馄饨。

Truffle oils have also popped up everywhere, but they’re usually made from synthetic compounds, not from real truffles.

松露油也随处可见，但它们通常由合成化合物制成， 而不是真正的松露。