Varistructure
[计] 可变结构
🗣️ 情景例句
You know him?
你认识他吗？
A little labour,much health.
适量的劳动大有益于健康。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。