I know a thing or two about it.

我对此略知一二。

youdao

The Italians know a thing or two about healthy snacking.

意大利人懂得如何吃零食才健康。

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The Japanese know a thing or two about natural disasters.

日本人对自然灾害还是略知一二的。

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You know a thing or two about overcoming long odds and rallying people to an important cause.

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Investors clamored to him, thinking any billionaire has to know a thing or two about making money.

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These are the people that know a thing or two about what it takes to get the economy going.

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