物理学家继续将已知的宇宙切成粒子来研究从磁力学到何种物质组成了它们和它们是怎么保持稳定的万事万物。
Physicists continue to carve the known universe into particles to describe everything from magnetism to what atoms are made of and how they remain stable.
石蜡是一种已知的致癌物，而过氧化氢则对消化系统有害。随意丢弃木筷则可能污染水和土壤质量。
Paraffin is a known carcinogen, and hydrogen peroxide can harm the digestive system. Chopsticks irresponsibly disposed of can contaminate water and soil quality.
毕竟，许多当时已知的化学反应会留下如同树枝般的残留物。
After all, many chemical reactions were known to leave lovely dendritic residues in their wake.
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