短语讲解：

1. There, Obama is expected to urge nations to adopt stronger measures to help reduce global warming.

be expected to 被期待做某事; 有望做某事
例句：The volume of sales is expected to roll up as the Spring Festival nears.
春节临近，预计销售量将逐渐增加。

2. The pipeline would have transported more than 800,000 barrels per day from the oil sands of Alberta, Canada.

more than 超过; 不只是; 很
例句：True friendship is worth more than money.
真正的友谊比金钱更有价值。
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