The eagles perched on their eyries.老鹰栖息在他们的巢窝上.There are three types of aquifers: perched, unconfined, and confined.含水层有三种形态, 分别是上层滞水 、 潜水和承压水.The town is perched on the edge of a steep, precipitous cliff.该镇坐落在陡峭险峻的悬崖边上。...
He pretended to be affronted, but inwardly he was pleased.他假装受到了冒犯,但其实内心很高兴。I pretended to rub a fleck of grit from one eye.我假装拭去一只眼睛里的沙粒。As he drew abreast of the man he pretended to stumble.当他赶上那个男人时,他装出了要跌倒的样子。...