Xb
abbr. crossbar 纵横开关; 交叉棒; 闩; exploding bridgewire 爆炸桥丝点火器（代号）
🗣️ 情景例句
Thank you.
谢谢你。
Excuse me to have kept you waiting.
对不起让你就等了。
A week? As long as that?
一星期？要那么长时间？