Polynonanoylamide
[化] 聚壬酰胺; 尼龙-9
🗣️ 情景例句
and he doesn't get to use it.
却又用不上。
So I appreciate your making time in your schedules to attend today.
因此非常感谢你们今天能够抽出时间来参加这次会议。
and of dark narrow streets full of petrol fumes and toxic gases,
和阴暗狭窄的街道组成