Otf
光学传递函数
🗣️ 情景例句
Richard, did you go to the Davis Aerobics class today? Richard
你去上Davis有氧运动健身课了吗？
Skiing is such a challenging sport!
滑雪是非常有挑战性的运动！
In her letter, she said that she would come to England next year.
在信中她说她明年将到英国来。