Piddock
n. [动]海笋,穿石贝
🗣️ 情景例句
Lacks confidence and poise is nervous and ill at ease.
信心不足，不够自信，精神紧张，心神不定。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
He collected tetters and made copies of people's diaries.
他收集到一些信件，复印了一些人的日记。