Dialkyl alkylene diphosphonic acid
[化] 亚烷基二烷基双膦酸
🧩 词语组成解析
[机] 二烷基
亚烃基, 烯化, 烷撑
🗣️ 情景例句
We're strangers here; can you help us find ...?
我们在这里人生地不熟，您能告诉我们__在哪里吗？
The police crept up from behind and took the gangster by surprise.
警察悄悄从背后绕过去，出其不意地将歹徒逮捕。
Yes, I remember. You were not here yesterday. What was wrong? Were you ill?
是的，我记得。你昨天没有来。怎么啦？你病了吗？