棕榈叶扇既便宜又容易制作。
很容易就能找到便宜的蹦床，但它必须做得很好，足够结实，能承受你的重量。
It's easy to find an inexpensive trampaline, but it should be well made and strong enough to support your weight.
一定要花钱买一把好锁，因为便宜的锁非常非常容易被剪断。
Do spend money on a good lock, because the cheap ones can be very, very easy to cut.
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