Black cottonwood
美國黑楊,毛果楊(Populus trichocarpa); 濕地白楊,池楊,異葉楊(Populus heterophylla)
?? 詞語組成解析
black
[bl?k]
adj. 黑（色）的;黑色人種的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑顏料;黑暗;
v. 使變黑;抵制;拒絕;使變黑暗;
cottonwood
['k?t?nw?d]
n. 三葉楊，棉白楊;
??? 情景例句
That's a good buy.
那買得便宜。
Same difference!
半斤八兩。
But, in contrast, it is only in modern times that Galileo has become a problem child for historians of science.
但是相比之下，只是在現代對于科學史家來說，伽利略才變成一個新的難題。