今天我们要学的词是bilingual。 Bilingual, 会说两种语言的。有研究认为， "People who are bilingual are better at multitasking," 会说两种语言的人更善于同时做好几件事情。另外有研究发现， "Being bilingual may delay the onset of Alzheimer's disease," 说两种语言可能可以延缓老年痴呆症症状的出现。在研究涉及的病人中， "People who are bilingual reported that their symptoms had begun five years later than those who spoke only one language," 说两种语言的人症状比只说一种语言的人晚出现五年。好的，今天我们学习的词是bilingual...