The only thing worse than training employees and losing them is not training them and keeping them.

"Only through suffering does one understand the depth of life."

解释：大多数果实都带有酸味，而覆盆子却是甘甜的，体现了中药味道的多样性。

伟大是许多小事做好的结果。

我们要用现代生物技术武装传统农业，提高农业生产效率。