hú lún tūn zǎo
to swallow in one gulp (idiom)
(fig.) to accept without thinking; to lap up
囫
hú
used in 囫圇|囫囵[hu2 lun2]
囵
lún
吞
tūn
to swallow
枣
zǎo
(bound form) jujube; Chinese date (Zizyphus jujuba)