seize and keep someone as a hostage
把某人持為人質(zhì)
an act, commitment, or remark which is regarded as unwise because it invites trouble or could prove difficult to live up to
招惹麻煩（或不明智、很難做到）的行為（或許諾、話語(yǔ)）擔(dān)風(fēng)險(xiǎn)
making objectives explicit is to &B{give a hostage to fortune}.
使目的明確就要承擔(dān)風(fēng)險(xiǎn)。