As a result of chronic inflammation, the lungs become enlarged and push the diaphragm downward, which makes it harder for the diaphragm to contract as efficiently.
慢性炎症会导致：肺部变大，向下推压横膈膜，使得横膈膜的有效收缩变得更困难。
Next, take the head gently in two hands and press it very slightly downward (do not pull), asking the mother to push at the same time, to deliver the front shoulder.
接下来，用两只手温柔的接住宝宝的头部，略微往下降一点(不要拉扯)，同时要求妈妈用力推出宝宝，产出前肩部。
Short sellers bet on share prices going down rather than up and it is said that the pressure from a large number of them can push a stock into an unstoppable downward spiral.
所谓的股票卖空者就是那些下注股票下跌的人，据说大量的卖空者产生的压力可以迫使一只股票进入无法停息的螺旋下降。
It's easy to think that the pressure to push prices downward was the only impulse that drove the success of travel on the web - but there have been other factors at work.
我们很容易想象出，降价的压力是推动在线旅游的动力——但还有其它因素在起作用。
Most people believe demand for the ore will exceed supply until 2014, when surplus supply will push prices downward.
大部分观点认为，在2014年前后，全球铁矿石供求结构将逆转，矿价将整体下跌。
Most people believe demand for the ore will exceed supply until 2014, when surplus supply will push prices downward.
大部分观点认为，在2014年前后，全球铁矿石供求结构将逆转，矿价将整体下跌。
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