The boy collected all the bits of nowledge that the train-men let drop.

这个男孩一点一滴地吸收了车站人员的知识。

What I really love, especially with nature, is that it reveals itself gently and a little bit by bit.

我对大常热爱的是，它一点一滴地，温和地展示着。

During these long militant years, I have lived a plain life with no luxuries to speak of.

经手的款项，总在数；但为革命而筹集的金钱，是一点一滴地用之于革命事业。

When you begin to remove the head of a food chain, it creates something called a trophic cascade, basically a trickle-down effect that can disrupt an entire ecosystem.

当我们开始移除食物链的顶层，这会引起一种叫作营养瀑布的现象，基本上它会一点一滴地逐步瓦解整个生态系。