Hld
abbr. held (hold的过去式); hold 保持; 同步; 成立
🏥 医学释义
半数致列剂量
🗣️ 情景例句
My instructor thought that the beginner's class was too easy for me.
老师认为初级课程对我来说太容易了。
No man learns but by pain or shame.
不经痛苦羞辱，难以取得教训。
No, I haven't. Why? Have you?
没有，我没有。怎么啦？你有吗？