【使用地区】：英国

【释义】：

Said of something someone is very familiar with or knowledgeable about．“A book on skydiving—that’s right up your street．”Americans would say right up your alley．

意为“对……非常熟悉，了如指掌”。如：“一本关于跳伞的书，你再熟悉不过了。”美国人的说法是right up your alley。