采用全新规则的科创板渐行渐近，自2014年以来第一次，A股公司第一天上市可能收涨也可能收跌。请看本报昨日的报道：

For the first time since 2014, China’s new stocks could go either way on their trading debut.

A new exchange board in Shanghai is about to change the game. New listings won’t be subject to the valuation restriction and pricing will be instead determined by the market.

Analysts say this year’s dearth of debutantes in China — its slowest first quarter since 2016 — and the surging stock market make it likely that IPOs will price at the upper end. But where the stock will close on its first day will be anyone’s best guess.

报道中的anyone’s guess就是“难以预测”，因为anyone’s guess is as good as anyone else’s, 所以no one knows。例如：

Who will be appointed as the new manager is anyone’s guess.

不知道会任命谁当下一任经理。