We rely upon you to be careful in test-flying a plane.
我们相信你们在试飞飞机时是小心谨慎的。
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Things went horribly wrong for test pilot Ken Collins (flying under his Area 51 code name Ken Colmar) when testing the plane's subsonic engines at low altitude.
Assuming that a network connection to the public Internet is available when run (and that Twitter hasn't changed its public API), this test should pass with flying colors.