Sciascopy
视网膜镜检查
🗣️ 情景例句
Do you have any assurance for its quality?
你们有任何品质保证吗？
How many gallons are you going to take?
你要拿几加仑？
With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.
随着书写的发明，又迈进了一大步，因为这样一来，知识不仅能交流，而且能储存了。