Ffd
[医][=focal film distance]焦点胶片距离
🗣️ 情景例句
will read a poem by Robert Frost.
要朗读Robert Frost作的一首诗。
To operate a steam locomotive
驾驶蒸汽机车
This figure rises to a staggering 60% of men in their sixties.
而到60岁这个年龄段，这个数字上升到令人惊愕的60%。