tree-line (also `timber-line)

n level of land, eg on a mountain, above which trees will not grow 林木线（树木生长的上限, 如山上的）.

treasonably, treasure, treasure trove, treasure-house, treasure-hunt, treasurer, treasury, Treasury bill, treat, treat sb. as, treat sb. for, treatable, treatise, treatment, treaty, treble, treble chance, tree, tree-fern, tree-house, tree-top, tree-trunk, treeless, trefoil, trek, trellis, tremble, trembler, trembling, trembly, tremella, tremendous, tremendously, tremolo, tremor, tremulous, tremulously, trench, trench coat, trenchant,