Sng
abbr. sans notre garantie (French=without our guarantee) （法语）没有我们的保证; synthetic natural gas 人工合成天然气
🗣️ 情景例句
Please don't worry.
请别担心。
Thoroughly to teach another is the best way to learn for yourself.
教学相长。
Mrs.Richards sent her children to school and went upstairs to her bedroom.
把孩子送去上学，然后来到楼上自己的卧室。