这些现实的可能性在大卫·格拉多尔的研究中得到了强调。
Those realistic possibilities are highlighted in the study presented by David Graddol.
当我们做到后，我就知道机械修复有了现实的可能性。
Once we did, I knew that a mechanical repair was a real possibility.
当我们做到后，我就知道机械修复有了现实的可能性。
Once we did, I knew that a mechanical repair was a real possibility.
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