Xh
abbr. extra hard 特硬的（代號）; extra heavy 特重的（代號）; extra high 特高的（代號）
??? 情景例句
Keep your chin up.
別灰心。
I feel blue at the news.
我聽到這消息而悶悶不樂。
That sounds a great idea. Good luck with your trip!
聽起來真是個好主意。祝你一路順風。