He used a rope to mark off the circle.他用绳子把那个圈围了起来。Read the text through and mark off the sections you find particularly applicable.通读全文，画出你认为最有用的段落。But the money had come to mark off his weaving into periods.但是,金钱却终于把他的...
In Africa, there are a lot of children suffering from severe malnutrition.在非洲有大批严重营养不良的孩子。The wrong chemical balance can cause severe distortion of the photographic image.化学药水不合比例可引致摄影图像的严重失真。Conclusions - Lack of cardio...