当他们着地时
When they landed
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当他们着地时，一切就开始消失了。
As they landed, things began to disappear.
youdao
当一些人声称在重心之下着地时，录影带并不支持他们的说法。
When we look at videos of people who self-report that they're running under their center of gravity, the videos don't support them.
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模块上移
模块下移
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