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a pine / pine trees
We planted a pine in the garden.
我们在花园里种了一棵松树。
松树
pines — plural of pine
先理解核心含义，再看它在真实句子里的用法。
松树
A coniferous tree of the genus Pinus, or any similar tree.
We planted a pine in the garden.
我们在花园里种了一棵松树。
松属的任何针叶树。
Any coniferous tree of the genus Pinus.
松树
a coniferous tree
任何在某方面类似该属成员的树(通常为针叶树)。
Any tree (usually coniferous) which resembles a member of this genus in some respect.
松木,纹理直,耐用,常含树脂,白至淡黄色,来自松属树木
straight-grained durable and often resinous white to yellowish timber of any of numerous trees of the genus Pinus
The pine in our backyard is over 100 years old.
我们后院的那棵松树已经超过100年了。
This table is made of solid pine, so it's very durable.
这张桌子是用实心松木制成的，所以非常耐用。
Pines are evergreen trees that grow well in cold climates.
松树是常绿树，在寒冷气候下生长良好。
We planted a pine in the garden.
我们在花园里种了一棵松树。
pine 指松木时通常为不可数名词。
The table is made of pine.
这张桌子是松木做的。
Not this
She pines her lost cat.
Use this
She pines for her lost cat.
动词 pine 表示“渴望，思念”时是不及物动词，必须接介词 for 才能带宾语。中文“思念”可以直接接宾语，但英语需要加 for。
Not this
There is pine in the garden.
Use this
There is a pine in the garden.
作为“松树”时，pine 是可数名词，单数形式前需加不定冠词 a；如不加冠词则被视为不可数名词松木，导致语义混淆。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
松树
The pine tree in our backyard is over 50 years old.
我们后院的松树已经50多岁了。
松林
We hiked through a dense pine forest.
我们徒步穿越了一片茂密的松林。
松木
This table is made of solid pine wood.
这张桌子是实心松木做的。
松针
The ground was covered with fallen pine needles.
地上覆盖着掉落的松针。
松果
Squirrels were collecting pine cones for the winter.
松鼠们在收集松果过冬。
松树皮
Pine bark is often used as mulch in gardens.
松树皮常被用作花园里的覆盖物。
Use pines naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
松树pine的叶子像针（pin），加个e代表树，记住拼写和意思。
中性; 松树和松木广泛应用于林业、建筑及日常描述
作为树木时可数，作为木材时不可数。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.