短语讲解：

1. His speech in support of free trade came during the first day of the yearly meeting of political, business leaders, activists and artists.

in support of 支持; 证明…正确
例句：They are raising a fund in support of this good cause.
他们正在为赞助这一有益的事业而集资。

2. Anthony Scaramucci is giving up his U.S. financial business to work with the new Trump administration.

give up 放弃; 投降
例句：Don't give up hope; keep on trying.
不要灰心，继续努力。
work with 与…在一起干; 从事…工作
例句：You cannot expect to like all the people you will work with
不要指望你会喜欢所有和你共事的人。