JUST是介词吗?EG.They just looking at the post.JUST后的LOOK加了ING,是不

JUST是介词吗?EG.They just looking at the post.JUST后的LOOK加了ING,是不 Just _ down the .walk是加ing,还是原型 Just 后面是必须要加ing形势吗?例如just wondering just后面加ing吗 为什么I'm just looking要加ing just look at Just _____ （look）at the time! 翻译啊 they just sat there looking at one another over the rims just look at the way和just look有什么区别么 good afternoon.I'm just look-ing . The bag is just 5 dollars此句中just后需要加for吗? Just as the train was____,they saw it.这个空的正确答案是to leave,为什么不