在白光下，做起来要比上面所说的难一些，但仍值得试试。
This is easier said than done in white light but it's well worth trying.
不管是种人造树，还是向大海中添加铁屑，这些想法虽然很疯狂，但也未尝不是一种办法，值得试试。
Still, whether it's man-made trees or injecting iron into oceans, they may seem like crazy ideas, but they're all worth trying.
不管是种人造树，还是向大海中添加铁屑，这些想法虽然很疯狂，但也未尝不是一种办法，值得试试。
When we see a grove of trees in the future, will we be constantly wondering whether the trees are natural or man-made?
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