If you are lying somewhere , you are in a horizontal position and are not standing or sitting .

If you have a lie-in , you rest by staying in bed later than usual in the morning.

(of a vessel) to be hove to with little or no swinging

to go into or stay in one's room or bed, as through illness

If things are left lying about or lying around , they are not put away but left casually somewhere where they can be seen .

If you lie back , you relax and lower yourself from a sitting position so that you are resting on your back.

When you lie down , you move into a horizontal position, usually in order to rest or sleep.

If things are left lying around or lying about , they are not tidied away but left casually somewhere where they can be seen .

If you refer to what lies behind a situation or event, you are referring to the reason the situation exists or the event happened .

( be horizontal : person ) 躺 tǎng

( person ) 向后(後)靠 xiànghòu kào

( person ) 躺下 tǎngxià

= lie around

( things ) 乱(亂)放 luànfàng

( cause ) 是 ... 的缘(緣)由 shì ... de yuányóu