请问obstacle

请问obstacle obstacle clearance是什么意思 obstacle 什么意思? obstacle的同义词 Overcoming Obstacle是什么意思 obstacle怎么发音? obstacle和barrier的区别? 如何区别obstacle及obstruction? obstacle“困难,问题”可不可数? obstacle course各种类似词组 请问Lack of education is an obstacle of success.的句子成分?1.　lack 是作名词吗?2.　哪些情况下动词可以直接放在句首? 12）The Obstacle of Intercultural Communication obstacle and barrier他们有什么区别? we have as yet found no obstacle yet goal的意思及其同义词,obstacle的意思 obstacle 中间的T 怎么不发音啊 跪求一篇题目“overcoming obstacle”的英语作文. Whatever the future will be,be confident and you will have no obstacle in your way.