enter into the spirit

join wholeheartedly in an event, especially one of celebration and festivity

全身心地投入活動(dòng)（尤指節(jié)慶活動(dòng)）中

he &B{entered into the spirit of} the occasion by dressing as a pierrot.

他打扮成丑角的模樣全身心地投入了這個(gè)活動(dòng)。

in (或 in the) spirit

in thought or intention though not physically

在精神上

he couldn't be here in person, but he is with us in spirit.

他雖然不能親自到這來，但他的精神是和我們在一起的。

the spirit is willing but the flesh is weak

(proverb)someone has good intentions but fails to live up to them

(諺)心靈愿意，但肉體卻軟弱了；心有余而力不足

when the spirit moves someone

when someone feels inclined to do something

在某人想（或喜歡）做某事時(shí)，只要某人高興

he can be quite candid when the spirit moves him.

只要他高興，他有時(shí)也會(huì)相當(dāng)坦率的。

the spirit world

(in animistic and occult belief) the non-physical realm in which disembodied spirits have their existence

（在萬物有靈論和神秘信仰中的）靈魂世界

spirit someone up

(archaic)stimulate, animate, or cheer up someone

(古)激勵(lì)人；鼓舞人