He often works by rule of thumb.他通常凭经验办事.As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.凭经验估计，一杯过滤咖啡约含80毫克咖啡因。A good rule of thumb is that a broker must generate sales of ten times his salary ...
阿富汗空军正用直升机向被围城镇提供补给。The Afghan air force was using helicopters to supply the besieged town.安东尼·海曼在此就他那本关于阿富汗的书写了书评。His book about Afghanistan is reviewed here by Anthony Hyman.他意识到阿富汗人近在咫尺。He became aware of the proximit...