1. 911查询·英语单词
1. The situation in Bosnia was so dire that woodcutters revved up their chain saws to cut wood for fireplaces.
2. Some revved up during exercise, like those involved in processing fat.
3. The two then revved up the bikes and tried to flee through a narrow footpath.
4. Social undertakings in rural areas should be revved up, while rural infrastructure should be reinforced.