大学英语四级/cet4词汇带英文注释(八十八)

　　silence

　　[(1) to make quiet; (2) to stop from speaking or making noise; (3) a lack of noise or sound]

　　Silence the television by pushing the mute button on your hand control. (1)

　　The team leader silenced his men with a hand sign. (2)

　　She heard only silence. (3)

　　silver

　　[a valued white metal]

　　That little box is made of silver.

　　similar

　　[like something else but not exactly the same]

　　The President said his proposal was similar to a proposal by Congress.

　　simple

　　[(1) easy to understand or do; (2) not difficult or complex]

　　Special English is a simple form of spoken English. (1)

　　This book tells us in a simple way how to use a computer to do complex work. (2)

　　since

　　[from a time in the past until now]

　　I have known her since we went to school together.

　　sing

　　[to make music sounds with the voice]

　　He sings in the shower.

　　single

　　[one only]

　　He gave her a single flower, a red rose, to show his love.

　　sink

　　[to go down into water or other liquid]

　　He sank deeper into the mud with each step.

　　sister

　　[a female with the same father or mother as another person]

　　I have only one sister.

　　sit

　　[(1) to rest on the lower part of the body without the support of the legs; (2) to become seated]

　　Please sit down and rest. (1)

　　She sat down. (2)

　　situation

　　[the way things are during a period of time]

　　The situation in the Middle East is very dangerous.

　　size

　　[(1) the space occupied by something; (2) how long, wide or high something is]

　　Can you imagine the size of the Universe? (1)

　　Geometry can help you measure the size of that big tree. (2)

　　skeleton

　　[all the bones of a human or other animal together in their normal positions]

　　Scientists sometimes find the skeletons of people who lived thousands of years ago.

　　skill

　　[the ability gained from training or experience]

　　He has great baseball skills.