由于大宗商品价格下跌，世界贸易额下降幅度会更大。
The value of world trade will collapse much more because of the fall in commodity prices.
我们用激光测距仪测量冰川高度的下降幅度。
We took measurements with laser rangefinders to measure the loss of height of the glaciers.
英国和加拿大都降低了利率，但远比美国的下降幅度小。
Rates in Britain and Canada have been cut, but by much less than in America.
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