Always serious and private to the point of secretiveness.

总是严肃且近乎隐秘。

The vast secretiveness of it vibrated to herself.

它的巨大秘震动了她自己。

He had the instinctive secretiveness of the inveterate criminal.

他有根深蒂固的罪犯的隐秘性。

What I wonder at is, rather your secretiveness than your courage.

我想知道的是你的秘, 而不是你的勇气。

It can erode the trust between children and adults, potentially leading to increased secretiveness or rebelliousness.

它会侵蚀儿童和成人之间的信任，可隐秘或叛逆的增加。

Whenever she was unhappy she felt herself at bay against a pitiless world, and a kind of animal secretiveness possessed her.

每当她不开心时， 她就觉得自己与这个无情的世界格格不入，一种动物般的神秘感占据了她。