n.
(身心的)良好状态, 舒服

[ noun ]
in working order
<noun.state>
out of kilterin good kilter

Kelter \Kel"ter\, n. [Cf. Gael. & Ir. cealt clothes, Gael.
cealltair spear, castle, cause, Prov. E. kilter tool,
instrument. Cf. {Kilt}.]
Regular order or proper condition. [Usually written {kilter}
in th U. S.] [Colloq., chiefly British spelling]

If the organs of prayer be out of kelter or out of
tune, how can we pray? --Barrow.

kilter \kil"ter\ (k[i^]l"t[~e]r), n. [Cf. Gael. & Ir. cealt
clothes, Gael. cealltair spear, castle, cause, Prov. E.
kilter tool, instrument. Cf. {Kilt}.]
Regular order or proper condition. Same as {kelter}, but
{kilter} is the more common spelling in the U. S. Used
chiefly in the phrase out of kilter, meaning out of order or
irregular in some manner. [Also spelled {kelter}.]
[1913 Webster +PJC]