当他尽力想减速的时候，自行车开始冒烟了。

When he tried to slow down , it began to smoke .

世界银行则预计，自大萧条以来贸易量减速最快。

The World Bank expects the fastest contraction of trade since theDepression .

然而，找寻宇宙早期曾经减速膨胀的直接证据还是非常重要的。

Nevertheless , it is important to look for direct evidence of an earlier ,slowing phase of expansion .