他偶尔会说个小谎。

He has ___on ___occasion told a small lie.

我偶尔会享受一杯上等威士忌。

I ___on ___occasion enjoy a glass of fine whiskey.

这样的爆发虽然罕见，但确实偶尔会发生。

Such outbursts, though rare, do happen ___on ___occasion.