Nastran
[计]= NASA STRuctural ANalysis,美国宇航局结构分析
🗣️ 情景例句
But I'm sure he has a few bags with him on the train.
不过我相信他在火车上还有几件行李的。
I'm too busy.
我太忙。
It's very pleasant.
气候非常宜人。