n.凹痕；力量
vt.打出凹痕
He reached the top by dint of great effort. 他费了很大的劲终於爬到了顶。
The problems must be tackled by dint of education. 这问题必须靠教育来解决。
卧底, 到底
v.使复原；使复旧；重建
n.复旧；复原
