...等时间状语连用。有时通过上下文可以判断出应采用何种时态,如:Hurry up! We are all waiting for you. 快点!我们大家都等着你。(2) 表示现阶段正在进行而说话时不一定在进行的动作。例如:We are working in a factory these days. 这几天我...
省略?倒装?前置?这个句子里面包含的是什么语法知识?Since the beginning of the new century, of the five percent increase in the global green leaf area, one quarter has come from China.