He is merely throwing the idea forward for discussion, it is not cast in stone.

他只是抛出个想法供讨论，不是固定不变的。

《柯林斯英汉双解大词典》

Now, imagine stopping a working woman on Detroit's Woodward Avenue, perhaps a young bank clerk, and asking if she would cast her mind forward, decades into the future.

假设现在在底特律伍德沃德大道挡住一位职业女性——她可能是一位年轻的银行职员，问她是否愿意预见一下几十年后的事。

youdao

But 15 years on, a pensioner has come forward to cast doubt on the spectre.

然而15年后，一个退休老人逐步揭开了幽灵疑云。

youdao

He said the changes in investigation results as the case moved forward cast suspicion on the review, according to the state-run news agency's account.

CNN: North Korea condemns South over warship claims

These included thrusting his right arm forward to cast a spell and crossing his left arm in front of him to shield himself from attacks.

FORBES: A First Look at 'Fable: The Journey' for the Xbox Kinect

The Razzies committee also put forward "any two cast members" from MTV reality show Jersey Shore for worst screen couple in the Three Stooges movie - based on the cult US comedy act.

BBC: Twilight leads Razzies 'worst film' shortlist