At last, pine mountains full of waterfalls came into view.

终于映入眼帘的是布满飞瀑的松山。

The other alpine conifers-the Needle Pine, Mountain Pine, Two-leaved Pine, and Hemlock Spruce-are never thinned out by this agent to any destructive extent, on account of their admirable toughness and the closeness of their growth.

其他高山针叶树——针叶松、山松、双叶松和铁杉——由于它们令人钦佩的韧性和生长的紧密性， 从未被这种药剂稀释到任何破坏性的程度。