Protein-free culture-medium
[医] 无蛋白质培养基
🧩 词语组成解析
protein
['protin]
n. [化]朊，蛋白（质）;
adj. 蛋白质的;
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
medium
['midɪəm]
adj. 中等的，中级的;普通的;平均的;半生熟的;
n. 媒介物，媒质;中间，中庸，[生]培养基，培养液，颜料溶解液，[数]中数，平均，[逻]中名辞;手段，方法;中间物;
medi中间+um表名词→中间物，媒介
🗣️ 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
What is not wisdom is danger.
不智的事是危险的。
A lot of people can't tell the difference between an American accent and a Canadian accent.
许多人分不出美国口音和加拿大口音的差别。