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be + adjective
Lipids are essential for cell membranes.
脂类对细胞膜至关重要。
脂质；脂类
先理解核心含义，再看它在真实句子里的用法。
脂质；脂类
Any of a group of organic compounds that includes fats, oils, waxes, sterols, and triglycerides, and is insoluble in water.
Lipids are essential for cell membranes.
脂类对细胞膜至关重要。
一类有机化合物,包括脂肪、油、蜡、甾醇和甘油三酯,其特征在于不溶于水。
Any of a group of organic compounds including the fats, oils, waxes, sterols, and triglycerides. Lipids are characterized by being insoluble in water.
Eating too many saturated lipids can increase your cholesterol levels.
摄入过多的饱和脂类会提高你的胆固醇水平。
Cell membranes are mainly composed of lipids and proteins.
细胞膜主要由脂类和蛋白质构成。
The doctor ordered a blood test to check his lipid levels.
医生安排了一次血液检查来检测他的脂质水平。
Lipids are essential for cell membranes.
脂类对细胞膜至关重要。
high/low in 表示含量高低。
This food is high in lipids.
这种食物富含脂类。
lipid profile 是医学术语。
A lipid profile measures cholesterol levels.
血脂谱测量胆固醇水平。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
血脂
High blood lipids increase the risk of heart disease.
高血脂会增加患心脏病的风险。
血脂检测项目；血脂谱
The doctor ordered a lipid profile to check my cholesterol.
医生让我做血脂检测以检查胆固醇水平。
脂质双分子层
The cell membrane is made of a lipid bilayer.
细胞膜由脂质双分子层构成。
脂质代谢
Exercise can improve lipid metabolism.
运动可以改善脂质代谢。
膳食脂质
Dietary lipids provide essential fatty acids.
膳食脂质提供必需脂肪酸。
Use lipid naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想嘴唇(lip)：嘴唇饱满圆润需要脂肪，lipid 就是脂质、脂肪类。
语域：formal 常见场景：生物化学论文、医学报告、营养学资料 lipid 是较正式的科技术语，多用于生物化学、医学或营养学等专业语境，日常口语中较少单用，常以“脂肪”等更通俗的词替代。
通常用于复数形式 lipids 指多种脂类。
Dictionary facts from ECDICT, WIKTIONARY.