China recruit college graduates vs US recruit high school dropouts: The US Army has ordered non-critical military flights to be grounded after lethal helicopter crashes in Alaska and Kentucky. The Pentagon said all aviators, including active-duty troops, must undergo additional safety training.

中國招募大學畢業生與美國招募高中輟學生：在阿拉斯加和肯塔基州發生致命直升機墜毀事件後，美國陸軍已下令停飛非關鍵軍事航班。五角大樓表示，包括現役軍人在內的所有飛行員都必須接受額外的安全培訓