Electronfractography
断口电子显微镜检验
🗣️ 情景例句
Hope to be a bigger help on the new community-center project.
希望能在新社区中心这件事上提供更大的帮助。
We learn not at school, but in life.
学习不在校，而在生活中。
And, because most books were not printed in Braille.
因为大多数的书本没用布莱叶文印刷。