IN BRIEF

摘要

1. Former U.S. national security adviser JohnBolton said he's willing to testify under subpoena in the Senate impeachment trial of President Trump. Republicans and Democrats are divided on how to proceed, with the GOP seeking a swift trial without witnesses.2. The first made-in-China Teslas began rolling out of a factory near Shanghai, which was built in less than a year. Elon Musk, betting on huge demand from the world's biggest car market, has already cut prices on the Model 3 to win over buyers.