Mistletoe is a parasitic plant.

檞寄生是一种寄生植物。

You're standing under mistletoe!

你们站在槲寄生下！

Joan: What do you want with mistletoe?

琼：你要用槲寄生植物做什么？

Did someone say mistletoe?

有人说榭寄生？

Mistletoe can be toxic.

懈寄生是有毒的。