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By this, she means that existing workers will have to start to produce more goods and services per day of work, or else the country will need additional people entering the jobs market, such as potentially through increased immigration.
不因事小就视而不见，不因任务艰巨就退缩不前，不因目标长远就消极懈怠。
It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.