n (1)树(woody tall usu plant with a single main stem，or trunk)[C]：an apple/elm/ash/oak～ 苹果/榆/白蜡/橡树;a coconut～ 椰树; cherry/rose～s 樱桃/玫瑰树;be under the～s 待在树下;cut down～s 伐树;A bird settled on a～. 鸟栖息在树上。a～farm 林场;～trunks/shelter 树干/阴;family～(fig)家谱;not see the wood for the～s 只见树木不见森林;up a～进退维谷;

at the top of the tree 处于某行业的上层地位：He's at the top of the publishing～now. 他在出版行业处于执牛耳的地位。

(2)木材，材料(thing made of wood or either material for certain purposes)[C](尤构成合成词)：a shoe-/clothes-～鞋楦/衣架;

→′treeless adj 无树的;′tree-fern n 树蕨;′tree-house n 建在树上的小屋(供儿童玩耍);′tree-line n 树木生长线;′tree-top n 树梢(顶);′tree-surgeon n 伐木工;

vt 被迫上树(force up a tree)[T+n，通常pass]：The cat was～d by a dog. 猫被狗追得上了树。