科学家估计多达一百万种物种可能面临灭绝风险。

Scientists estimate ___as ___many ___as one million species could be at risk of extinction.

调查发现多达70%的受访者对服务不满意。

The survey found ___as ___many ___as 70% of respondents were dissatisfied with the service.

这家新工厂在全面投产时预计将雇用多达五百名工人。

The new factory is expected to employ ___as ___many ___as five hundred workers when fully operational.