Xi
n. 希腊字母的第14个字母；粒子（等于xi particle）
🗣️ 情景例句
My doctor says I could live to be 100.
我的医生说我能活到100岁。
Nice to meet you, too.
认识你我也很高兴。
Only one or two people have objected that the students will drive too fast!
只有一两个人提出反对意见，说学生们会把车开得太快！