birch

/b??rt?/
a tree with smooth bark and thin branches, that grows in northern countries
樺樹；白樺樹

poplar

/?pɑ?pl?r/
a very tall straight thin tree that grows very fast
楊樹

elm

a type of large tree with broad leaves
榆樹

chestnut

/?t?esn?t/
a large tree with spreading branches, that produces smooth brown nuts inside cases which are covered with spikes
栗樹