?? 詞語組成解析
is
[?z]
vt.& vi. 是（be的三單形式;
n. 存在;
??? 情景例句
You didn't say the magic words.
你沒有念魔語。
My name is Jones.
我姓瓊斯。
Could you please explain the premises of your argument in more detail?
你能詳細說明你們的論據嗎？