我的话在她心中：冰冷的抛光石头沉入沼泽。
农时：指春耕、夏耘、秋收三个时令。与其等灾荒来了再想办法补救，不如早防备灾荒，而防备灾荒最好就是抓住农时。
The stone industry must embrace sustainability to thrive in the modern world.
代数是人类创造的一种智力工具，用于清晰地表达世界的数量关系。
"The beauty of science lies in its ability to transform the abstract into the tangible."
The major problems in biology are not solved by new techniques, but by new ideas.