Polar staining
[医] 极端染色法
🧩 词语组成解析
[医] 染色法, 染色
🗣️ 情景例句
They're both very good buys.
这两栋都是价格便宜的。
Never swap (or swop) horses while crossing the stream.
骑渡中流莫换马。（指危难时不宜做大变动）
She guided the tourists around the castle.
她引导旅游者参观了这座城堡。