I'll never cross the threshold of your house again.

我再也不进你的家门了.

《简明英汉词典》

To cross the threshold is not difficult, but mastery is another question.

入门不难, 深造不易.

《现代汉英综合大词典》

Once you cross the threshold of profitability, however low, your runway becomes infinite.

你一旦突破盈利点, 不管盈利多么微乎其微, 你的跑道将无限延长.

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He had never cross the threshold of a college before.

他从来没上过大学.

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He backed into his doorway, determined not to let Jack cross the threshold.

他退回到门口, 下定决心不让杰克跨过门槛.

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Oliver: I'll tell you after we cross the threshold.

奥利弗: 等我们过了门槛我再告诉你.

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