?? 詞語組成解析
[醫] 門, 室間孔
??? 情景例句
His studies haven't been inproving lately.
他的學業最近沒什么進步。
Do you get much rain in summer?
這里夏天雨水多嗎？
What kind of music does he sing?
他演唱哪種音樂？