To be a poet is to have a soul so quick to discern, that no shade of quality escapes it.

Sustainable fishing isn't an option - it's the only way forward if we want our industry to survive.

解释：每种药材都有其独特的功效，而方剂则是将多种药材巧妙配伍以发挥更大效用。

电子并非一个简单不可分割的实体，而是一个复杂系统，其行为只能通过量子力学定律来理解。