当然NASA更愿意在轨道实验室保留一些人员，苏弗雷迪尼补充说。
NASA would of course prefer to keep some crew aboard the orbiting lab, Suffredini added.
研究人员补充道，新的研究既是历史的教训，又是对未来的警示。
The new study is both history lesson and warning, the researchers added.
然而，研究人员补充说，随着时间的推移，体重的变化会变得十分显著。
However, the researchers add, over time that could translate into significant weight change.
然而，研究人员补充说，随着时间的推移，体重的变化会变得十分显著。
However, the researchers add, over time that could translate into significant weight change.
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