lend weight to的用法和样例：
- Every time spot prices go up, they lend weight to miners who want a higher benchmark price for their bulk sales.
- The President swings his weight to get laws passed.
- This lends weight to the theory that a viable hybrid population was sustained by interbreeding over a long time.
- Oil's historic ascent from $100 to nearly $150 a barrel in just sixmonths is lending weight to a far grimmer prediction: Crude could reach$200 a barrel by the end of the year.
- A startling new household survey of Iraqis released last week claims as many as 1.2 million people may have died because of the conflict in Iraq - apparently lending weight to a 2006 survey in the Lancet that reported similarly high levels.
- This fact adds great weight to his conclusion.