他把这起谋杀称为极其卑劣的行为。He described the killing as a dastardly act.他们什么卑劣的手段都使得出来。They will stoop to every low-down trick.多么肮脏、卑劣的伎俩！What a dirty, low-down trick!...
Many adults have some problems with literacy and numeracy...很多成年人在读写和计算方面都有困难。There was also a strong link between children'slow maths scores and parents' numeracy problems.孩子数学成绩差也与父母算术不好密切相关。Six months later ...