trade-weighted rate

But world trade is expected to fall at the fastest rate in 80 years.

但据估计,世界贸易将以80年以来最快的速度下降.

But the world trade has is expected to fall at the fastest rate in 80 years.

但是国际贸易在经历了80年的飞速增长之后已开始回落.

Excluding other trade cost, theory of effective rate of tariff protection considers that tariff escalation can protect downstream industry even at a low tariff level.

在不考虑其他贸易成本的情况下，有效关税保护理论认为关税升级能够在较低的关税水平下保护下游产业，但该结论是不完整的。

But world trade is expected to fall at fasted the fastest rate in 80 years.

但是预计世界贸易会已最高的降率在80年间跌落.

But world trade expect is expected to fall at the fastest rate in 80 years.

但是,世界经济将会出现80年以来最快的一次下滑.