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
I'm wiped out by the time I get off work.
下班时，我都累趴下了。
She is singing in practice.
她在练习唱歌。
The instrument was bought by my grandfather many years ago.
是我祖父在很多年以前买的。