大多数初创企业都有败笔,mj3ZFacebook和Airbnb等公司的辉煌所取得的成就掩盖了这些失败之处Ywmb
BillandMelindaGatessharetheir2018AnnualLetter,“The10ToughestQuestionsWeGet.”Inthisyear’sletter,the10thonethatthey’vewritten.