Fna
abbr. fine-needle aspiration 细针穿刺抽吸，细针吸引; for necessary action 采取必要的行动
🗣️ 情景例句
I understand.
我了解。
Half a tale is enough for a wise man.
聪明人凡事只须听一半，就会明白究竟。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。