play with fire 是一个单词吗?像这类单词像一个词组,但是感觉又是单词.还有很多类似的词.单词量的多少是怎么衡量?像这样的词组算不算一个单词?

play with fire 是一个单词吗?像这类单词像一个词组,但是感觉又是单词.还有很多类似的词.单词量的多少是怎么衡量?像这样的词组算不算一个单词? play fire 还是play with fire play with fire还是play with the fire _______(play) with fire is very dangerous We mustn't play with fire.(划线划在play with fire 怎么问?) play with the toy还是play the toy?play with the water/fire还是play the water/fire? to play with fire is dangerous是不是没有这样的用法.应该是it is dangerous to play with fire.to play 是主语.with fire是介词短语做定语.to play with fire is dangerous是不是主语从句?如果是.引导词是什么.先行词呢 we play pingpang with (b````) with后面是一个以b开头的单词·怎么做 play water还是play with water,是不是和play with fire 一样,play与play with有什么区别附上play或play with的固定短语 you must not play with fire的同义句是什么什么with fire呢? Don't play with fire.It's dangerous.合并成一句 Don`t_____(play) with fire .It`s dangerous.要理由 you mustn't play with fire 怎么提问 You must not play with fire(改为祈使句) YOU must not play with fire (改为祈使句 If you play with fire,you get burnt The teacher told me not to play with fire a_____. Please be careful (not play ) with fire.空格填啥