🧩 词语组成解析
n. 三种氢的同位素中质量最轻者
🗣️ 情景例句
for opening their home to me.
为我敞开大门。
Yes, I'd like to know your daily production.
是的，我想知道你们的日生产额。
In her letter, she said that she would come to England next year.
在信中她说她明年将到英国来。