Why not try both?

 

1. 1877年LME成立时，英国仍是一个制造业大国。LME的三个月交割基准合约，就是为了反映将智利的铜（或马来亚的锡）运至英国港口所需的时间。

When LME was founded in 1877, Briton was still a manufacturing superpower. The three month period of contract settlement refelected the time that would take to transport the Chilean copper or Malasian tin to British ports.

 

2. 但如今，中国是金属市场上举足轻重的力量，在多数金属的需求中占40%以上的比重，在LME期货交易中的份额也在快速增长。

But now, China is a dominant player in the world metal markets, its share of the demands for most of the metals is often more than 40%, and its trading volume in LME futures contracts is growing rapidly as well.