英語(yǔ)動(dòng)詞短語(yǔ)做主語(yǔ)的使用方法,
比如：walk and deep-breathe in parks and forests for the high level of anion in these areas can stimulate parasympathetic nerve system which can help the body relax.中walk and deep-breathe in parks and forests for the high level of anion in these areas 這個(gè)動(dòng)詞短語(yǔ),后面can可以換做to嗎?還有,supplement energy in time to keep blood sugar at an effective level.中supplenment ernergy 做主語(yǔ),to可以換做can嗎?如果可以互換,那么可以說(shuō)：Study English can make someone crazy,或者Studying English can make someone crazy.這兩種說(shuō)法都對(duì)嗎.請(qǐng)賜教.