以至 so that to the extent that... down to up to to such an extent as to
John is so shy and awkward that everyone notices him.
约翰如此害羞狼狈,以至于大家都注意到了他。
—— 给力词典精选He was so angry as to be unable to speak.
他是如此生气以至于不能说出话来。
—— 给力词典精选He was so down that he didn´t want to live any longer.
他情绪低落以至于不想活了。
—— 给力词典精选She had psyched herself up so much for the camping trip that she forgot her sleeping bag.
因为要出去野营,她特别地激动,以至于忘了带睡袋。
—— 给力词典精选The heat from the flames was so intense that roads melted.
火焰的热度如此高以至于路面融化了。
—— 《柯林斯英汉双解大词典》