Let $mathfrak{L}$ be the Virasoro-like algebra and $mathfrak{g}$ its
derived algebra respectively.
In this paper, we investigate the structure of the Lie triple
derivation algebra of $mathfrak{L}$ and $mathfrak{g}$. We prove
that they are both isomorphic to $mathfrak{L}$, which provides two
examples of invariance under triple derivation.
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