- The bird Clark's nutcracker, for example, hides up to 100, 000 seeds per year, up to 30 kilometers away from the seed source, and has a very close symbiotic(共生的) relationship with several pine species, most 32 notably the whitebark pine.
2016年12月六級真題（第一套）閱讀 Section A
- The reason for constructing the buildings from wood is probably that ideally proportioned straight and slender timber was available in large quantities in Scandinavia's vast pine forests.
2019年12月六級真題（第一套）聽力 Section C
- I put some pine branches into the basket to make this nest safe and comfortable.
2017年高考英語全國卷1 閱讀理解 閱讀B 原文