Microobjective
显微物镜
🗣️ 情景例句
Exactly.
正合我意。
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
America, Russia and Europe are filled with enthusiasts----
美国、俄罗斯和欧洲都有许多热心此项事业的人