(10), 最近市场上对钢管需求量很大,因此我方对此实盘不能保留太久.最近市场上对钢管需求量很大 :a.There has been a great / big / active demand for steel tubes in the market;b,The demand for steel tubes has been great in the market.c,Steel tubes he been in great / big / active demand in the market.d, Steel tubes are very much in demand in the market.仔细品味这四种表达法,英语多用小词(如介词)的特点一目了然.因此我方对此实盘不能保留太久.a,Therefore we can't keep this offer open too long.b, It is therefore impossible for us to keep this offer open too long. (推荐使用)从意思表达完整的角度,两种译法皆可,但[收起]