Be disappointed in...
对...感到失望
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
disappointed
[[ˌdisə'pɔintid]]
a. 失望的
🗣️ 情景例句
Hey, I wanted you to hear my new sound system
嘿，我正想让你听听我的新音响。
Kept waving to her mother until the train was out of sight.
不断地冲她的母亲挥手，直到火车驶出了视线。
with their fellow scientists either in other countries or in universities,
和其他国家、其他大学同行们