Pre-tax profits across IAG increased by 20% to €4.5bn (£3.9bn), with record operating profits on margins of more than 15% at BA and its sister airline Iberia.
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想象一下，你用饼干模具在面团上按了一下，这就是 ExtrudeGeometry 做的事。。爱思助手下载最新版本对此有专业解读