Present difficulty
引起困难
🧩 词语组成解析
🗣️ 情景例句
Please give me all the details.
请你提供所有的详细情况。
Do you have a passport?
你有护照吗？
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。