Concretions
(concretion 的复数) n. 凝固, 凝固物, 结石\\n[医] 凝结物, 结石; 粘连; 凝结(作用)
🗣️ 情景例句
Relax! Be patiend and enjoy yourself.
放松点！要有耐心，并让自己快乐！
I feel like vomiting.
我想呕吐。
Some devices were quite simple.
有些装置非常简单。