虽然大萧条致使国际贸易连续下降至少4年，但是，此次经济反弹迅速而且强劲有力。
But whereas the Depression saw trade decline for at least four years, this time the rebound has been quick, and sharp.
心脏也是一种肌肉，而且像其它肌肉一样，它会通过锻炼变得越来越强劲有力。
The heart is a muscle and, like other muscles, becomes stronger through conditioning.
心脏也是一种肌肉，而且像其它肌肉一样，它会通过锻炼变得越来越强劲有力。
The heart is a muscle and, like other muscles, becomes stronger through conditioning.
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