"know through and through" in Chinese (Simplified)

• 了如指掌
• 彻底了解

Definition

完全了解某人或某事的所有细节，通常是在长期接触或深入研究后。

Usage Notes (Chinese (Simplified))

这个短语较口语化，用于强调对某人或某事极其熟悉。常见于描述人与人、熟悉的地方或复杂的系统。不要在正式书面语中使用，可与“了如指掌”互换。

Examples

I know him through and through after working together for years.

我们一起工作了多年，我**对他了如指掌**。

She knows this city through and through.

她**彻底了解这座城市**。

My grandmother knew the recipe through and through.

我奶奶**对这道菜谱了如指掌**。

Ask Mike about the rules—he knows them through and through.

问问麦克规则吧，他**彻底了解**。

There’s no fooling her—she knows you through and through.

你骗不了她——她**对你了如指掌**。

After so many years, I know this job through and through.

这么多年后，我**对这份工作了如指掌**。