1) 人们开始担心人工智能的发展。
Concerns about the development of artificial intelligence loom.
2) As she starts a business, how to gain interest from investor looms large.
其他积累：
the terrible problem of... now looming large in our society
loom ahead 迫在眉睫
... is looming 一触即发
the looming threat of... 日益迫近的……威胁
