He says: "I feel inside have a doubtful point to feel difficult to understand very much."

他说：“我觉得内中有一个疑点很觉费解。”

youdao

Skyline by-talk netizen is listed a lot of doubtful point of this incident, think this incident is hype.

天涯杂谈网民列出该事件的诸多疑点，认为此事件又是一次炒作。

youdao

Can you give Arsenal a nine-point lead, it's very doubtful, though when Alex gets them all back - Rio, Wayne Rooney and Louis Saha - they'll go on a run and they won't lose that many games.

BBC: Rio dubbed 'Europe's best'

Whether a Latin American-style strongman would point the economy the right way is doubtful.

ECONOMIST: Could it lead to fascism?