Birch bark is pliable and very easy to bend.
桦树皮很柔韧，很容易弯曲。
It takes a few seconds to cut a flat part, but it may take several minutes to bend it. Balancing production like this isn't easy.
切割板材只要几秒钟，但是折弯却要几分钟，让不同工序生产节拍协调一致并不容易。
It comes as no surprise that bamboo-difficult to break yet easy to bend-is commonly used in the construction of fishing poles.
竹子经常被用作鱼竿——很难折断但是容易弯曲——这一点也不奇怪。
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