Ions
n. 离子（ion复数）
🗣️ 情景例句
By arranging with the public schools
首先， 从公立学校开始
If there were no clouds, we should not enjoy the sun.
吃得苦中苦，方知甜中甜。
and of dark narrow streets full of petrol fumes and toxic gases,
和阴暗狭窄的街道组成