She kept vigil at the bedside of her critically ill son...她整夜都守在病重的儿子床边。For three nights, the shepherd maintained his lonely vigil.牧羊人孤零零地连续看守了三个晚上.The union leader was last night staging a protest vigil 400 yards down a...
He is a metallurgist.他是冶金学家.I've come to pick your brains . You're metallurgist, and I've been asked this question about steel.我是来讨教你的专门知识, 你是一位冶金专家,有人向我提出有关炼钢这个问题.The metallurgist is a scientist who decid...