h**e的用法: 1、h**e+过去分词,构成完成时态。例句:he has left for japan.他已去了日本。2、h**e+been+现在分词,构成完成进行时。例句:i h**e been studying for 8 years。我学英语已达八年了。3、h**e+been+过去分词,构成完成式被动语态。例句:has been taught in... 20210311
不对,robot / 'rəʊbɒt ; ˋrobɑt /,定冠词只能用a表示一个机器人。例如:the workspace ** an important perfor-manc e evaluation criterion of a robot.机器人的工作空间是衡量机器人性能的重要指标之一。what if the worker ** a robot?那如果工人是机器人怎么办?...
professional training and to engage in electrical engineering system,automatic control,power electronics technology,**rmation processing,testing,research and development,economic management,as well as...
ice age 3 ...or he might never le**e.so i accepted the flower,and replied,“th** ** just what i 29.”just then,for the first time i noticed that the boy could not ...
h**e和do区别在于表达的情绪不同。do的只是一个普通的疑问,h**e的原因是完成时,有言外之意,要结合具体语境。拿do you still want them?和h**e you still wan他them?来举例:第一句话是标准的英语动词问句,既助动词do/does+主语+谓语动词部分;这个句子的意思是“仍然想要他们吗”?而后一句则是一个不标准的口语省略句,原句应该是do you stil...
很简单,清我帮你解答助词 v.aux.1.(加过去分词,构成完成时态)已经;曾经they h**en't fin**hed the job yet.他们尚未完成该项工作。2.(用于虚拟语气,表示与过去事实相反的假设)(假如那时)...的话she might h**e come if she hadn't been so busy.当时若不是那么忙,她是可能来的。及物动词 vt.1....