Viscous describes a liquid that is thick and sticky, and moves slowly. Honey is viscous. Motor oil is viscous. Water is not — water is thin and runs away fast. So the word is really about how easily a liquid pours or flows: the more viscous it is, the more it seems to hold on to itself. When you tip the bottle, a viscous liquid comes out in a slow, fat, lazy stream, or in one heavy drop that hangs there before it falls.

Viscous describes a liquid that is thick and sticky, and moves slowlyViscous形容一種濃稠、黏、流動很慢的液體 Honey is viscous蜂蜜是viscous Motor oil is viscous機油是viscous Water is not水不是 water is thin and runs away fast水很稀，流得很快 So the word is really about how easily a liquid pours or flows所以這個字講的其實是液體倒出來或流動有多容易： the more viscous it is, the more it seems to hold on to itself越viscous，就好像越黏著自己不放 When you tip the bottle把瓶子傾斜的時候 a viscous liquid comes out in a slow, fat, lazy streamviscous的液體會慢慢地、胖胖地、懶懶地流出一條 or in one heavy drop that hangs there before it falls或者變成一大滴掛在那裡，掉下來之前先停一下

This is mostly a science and technical word. You meet it in physics class, in chemistry, on the side of an oil can, in cooking writing, and in engineering. Ordinary people talking at home would just say 'thick' or 'sticky' or 'gooey'. If you say 'this soup is viscous' at dinner, it sounds like you are wearing a lab coat — funny, but not wrong.

This is mostly a science and technical word這主要是個科學、技術用字 You meet it in physics class, in chemistry, on the side of an oil can, in cooking writing, and in engineering你會在物理課、化學課、機油罐子上、寫料理文章，還有工程學裡遇到它 Ordinary people talking at home would just say 'thick' or 'sticky' or 'gooey'一般人在家講話只會說'thick'、'sticky'或'gooey' If you say 'this soup is viscous' at dinner如果你吃飯的時候說'this soup is viscous' it sounds like you are wearing a lab coat聽起來就像穿著實驗室白袍講話 funny, but not wrong好笑，但不算錯

One useful thing: viscous is not the same as 'strong' or 'heavy'. A viscous liquid can be very light. It is only about resistance to flowing. And heat changes it — cold honey is much more viscous than warm honey. That is why the noun 'viscosity' is often given with a temperature.

One useful thing有一件事很有用： viscous is not the same as 'strong' or 'heavy'viscous跟'strong'或'heavy'不是同一件事 A viscous liquid can be very lightviscous的液體可以非常輕 It is only about resistance to flowing它講的只是流動的阻力 heat changes it溫度會改變它： cold honey is much more viscous than warm honey冷的蜂蜜比溫的蜂蜜viscous得多 That is why the noun 'viscosity' is often given with a temperature這就是為什麼名詞'viscosity'常常會附上一個溫度

Writers do stretch it beyond real liquids: 'the air was viscous with heat', 'a viscous silence'. That means the thing felt thick, slow, hard to move through. That use is literary, not everyday.

Writers do stretch it beyond real liquids作家有時候會把這個字延伸到真正的液體之外： 'the air was viscous with heat''the air was viscous with heat' 'a viscous silence''a viscous silence' That means the thing felt thick, slow, hard to move through意思是那個東西感覺濃稠、緩慢、很難穿過去 That use is literary, not everyday這種用法是文學性的，不是日常的