takes a lot of doing
需要做很多事情
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It takes a lot of doing.
这事情做起来很费工夫。
youdao
It takes a lot of energy, and you have to know what you're doing and pay attention.
要花费很多精力，而且你得明白所作所为，还要集中精神。
It takes a lot of practice to stay on the skateboard whilst doing so many jumps and turns.
做那么多跳跃和转身，还能停留在滑板上是需要大量的练习的。
"It takes a lot of courage and confidence to do what he's doing, " said Grenada's Kirani James.
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