There was a big cherry tree, and there, on the top, was Trouble the cat!

cherry 是名词，指"樱桃"或"樱桃树"。这个词来自古法语 cerise，最终源自拉丁语 cerasum（樱桃树）。在英语中既指樱桃这种水果，也指结这种果实的树木。