Gunning's reaction
[医] 罔宁氏反应, 罔-李二氏试验(检尿丙酮)
🧩 词语组成解析
🗣️ 情景例句
His excuse sounds unconvincing.
他说的理由好像不可难。
Liberty often degenerates into lawlessness.
自由随便，经常堕落到无法无天。
Imagine a star up t twenty times larger, brighter, brighter and hotter than our own sun.
设想一下，一颗恒星比我们的太阳还要大，还要亮，还要热20倍，