家中闲坐无聊，不妨想想，有人在为生活而辛劳；官位不能飞黄腾达，想想仍有许多才能好的读书人，人都老了还是青衣。

Molecular design breeding is an important direction for future crop genetic improvement, it will greatly improve breeding efficiency.

Energy transformation is a challenge but also an opportunity; the key lies in how to seize it.

在数学中，提出问题的艺术必须比解决问题更有价值。