Sssis
(sssi 的复数) abbr. sites of special scientific importance 特别重要的科学场所
🗣️ 情景例句
You hold on to them so there won't be a problem later.
你来保管， 免得等一下又出问题了。
The prerequisite for Chinese Lit is Freshman Lit and Comp.
若要从事中国文学，必须在一年级修文学与作文。
It threatened to surround him completely, but Tazieff managed to escape just in time.
眼看就要将他团团围住，但塔捷耶夫还是设法及时逃离了。