首先标点符号用错了好几处,其次first line of construction有明显的中式英语的痕迹,还有,大小写写错了几处.
当然了,你让我找语法错误.expose to the weather是错的,应该用exposed to the weather能帮我改正一下吗？We now work in the first line of construction ,exposed to the weather.I feel strongly happy though on-site work is very hard ,because i love my job.I amvery pround of rooting in Hainan island and contributing to the constrction of the aerospace industry for our motherland.我只对几个明显不合适地方做了改动，其他结构也没敢乱改。