1. prick up

粗涂；豎起；（風）加劇

eg. Oh,what secret is it? I've already pricked up my ears.

啊，什么秘密?我已豎起耳朵聽著哩。

eg. The captain ordered the ship's course to be pricked up.

船長命令繪制船只的航道。

2. by then

到那時候

eg. By then, some plants will be flowering shortly after Christmas.

到那時，某些植物將在圣誕節后不久就開花。

eg. By then, he said, his team might be able to make a definitive statement about supersymmetry and some other theories to explain physics beyond the Standard Model.

他說，到那時，針對超對稱性和一些連標準模型都無法很好解釋的物理學，他的小組就能夠提供一個具有權威性的說明了。

3. at the edge of

在…… 在邊緣上

eg. At the edge of life everything is an occasion for death.

在生命的邊緣，一切都是導致死亡的原因。

eg. It was hot summer and at the edge of the desert it was like a furnace.

那是一個炎熱的夏天，在沙漠的邊緣，天熱得像火爐一樣。