The conversation went off at a tangent.
交谈突然偏离了正题。
These two curves are tangent.
这两个弧相切。
Bioengineering is an emergent branch of learning.
生物工程是一门新兴的学问。
Chenguan world& more effulgent due to you!
晨光世界，因为有你更精彩！
Meanwhile, "Hanfu" is an important part of Chinese civilization, and it is an effulgent pearl in the history of national culture.
同样，汉服是华夏文明的重要有机组成部分，也是汉民族文化史上的`一颗光辉璀璨的明珠。