1. They were toiling at their experiment. 他们正在辛苦地做试验。
2. If Hugh Miller, after toiling all day in a quarry, had devoted his evenings to rest and recreation, he would never have become a famous geologist. 如果休·米勒在采石场劳作一天后，晚上的时光用来休息消遣的话，他就不会成为名垂青史的地质学家。
3. Films and media have long depicted slaves toiling away in the desert to build the mammoth pyramids only to meet a miserable death at the end of their efforts. 长期以来，影视作品和媒体报道所描绘的都是奴隶们为了建造宏伟的金字塔在沙漠中长期劳役，最终精力耗尽而惨死。
