And his deplorable habit of being bold after the event, and full, in absence, of the most extraordinary presence of mind.

还有他那可鄙的“事后逞英雄，场外夸从容（异常从容）”的毛病。

In their DRAM, memory was stored as the presence or absence of electrons in a semiconductor well.

在他们的 DRAM 中， 内存是以半导体阱中电子的存在与否来存储的。

Regardless of the cause, the result is a decrease or absence of testosterone in males, or estrogen and progesterone in females, which means there's no negative feedback on the hypothalamus.

不论病因是什么，其造成的结果是男性睾酮的减少或缺失，或女性雌激素和孕酮的减少或缺失，这同时也意味着下丘脑负反馈机制消失。

After he had done speaking, he still moved about, half in absence of mind, and Rosamond sat perfectly still. At length Will, seeming to bethink himself, took up his hat, yet stood some moments irresolute.

说完之后，他还在走来走去，心不在焉，而罗莎蒙德则一动不动地坐着。最后，威尔似乎想起了自己，拿起帽子，但站了一会儿犹豫不决。

He took his sheet of paper very, very quietly, as though in absence of mind, rolled it into a ball, on the sly, put it into his mouth, chewed it a little, and then spit it out under the bench.

把自己所写的纸片揉成团塞入口中，嚼糊了吐在椅旁。