
tree
词源
源自古英语 trēow,与古诺尔斯语 tré,荷兰语 tree,德语 Baum 同源,最终源自原始印欧语 *drew-(意为'木头'、'树')。
noun
❶ 树木,指有木质茎干的多年生植物,通常有明显的主干和枝叶,是自然界常见的植物形态。
“The apple tree in our garden produces delicious fruit every summer.”
(我们花园里的苹果树每年夏天都会结出美味的果实。)
“She sat under the shade of a big oak tree reading her book.”
(她坐在一棵大橡树的树荫下看书。)
❶ 树状图或树形结构,指计算机科学或数学中具有分支结构的数据表示方式。
“The file directory is organized in a tree structure.”
(文件目录是以树形结构组织的。)
“In this algorithm, we traverse the binary tree recursively.”
(在这个算法中,我们递归地遍历二叉树。)
verb
❶ 迫使某人处于困境或尴尬境地,通常用于被动语态。
“The reporter treed the politician with a difficult question.”
(记者用一个难题把那位政客逼入了困境。)
“He was treed by his own contradictions during the debate.”
(在辩论中,他因自相矛盾而陷入窘境。)
❶ 驱赶动物上树,尤指狩猎时迫使猎物爬上树。
“The hunting dogs treed the raccoon in minutes.”
(猎狗几分钟内就把浣熊赶上了树。)
“We treed a bobcat during our last hunting trip.”
(我们上次打猎时把一只山猫赶上了树。)
常见短语
family tree — 家谱,用树状图表示家族成员间世代关系的图表。
“She researched her family tree and discovered ancestors from five different countries.”
(她研究了自己的家谱,发现了来自五个不同国家的祖先。)
up a tree — 处于困境或进退两难的状态,源自动物被赶上树后无法逃脱的意象。
“The tricky math problem had me up a tree for hours.”
(那道棘手的数学题让我困惑了好几个小时。)
money doesn't grow on trees — 谚语,意思是钱不是凭空而来的,需要努力工作才能获得。
“When I asked for a new phone, my dad said money doesn't grow on trees.”
(当我要求买新手机时,爸爸说钱不是从天上掉下来的。)