L6,Percy Buttons

expressions:

knock at敲打

knock off 碰掉，I knock the vase off the table

下班，He always knocks off six o'clock.

打折，knock 10% off the bill  其中off后边需要加sth

knock over，撞到knock sb over

knock out，把人打昏，knock sb out

 

in return for this 作为回报

stand on one's head 倒立

He calls at every house in the street

 

words:

unconscious，adj，无意识的，失去知觉的，不省人事的，未发觉的

也可以表示潜意识

adv

unconsciously，不知不觉的，无意识的

n

unconsciousness，无意识，意识不清