Yùndòngyuán yào jìnxíng wéiqī sān gè yuè de fēngbìshì xùnliàn.
The athletes will undergo three months of secluded training.
Tips
usage
Common in 封闭式管理 (closed-style management — common during the COVID era and at strict boarding schools), 封闭式训练 (sequestered training camp), and 封闭式问题 (closed-ended question, in surveys). The 式 suffix turns 封闭 'sealed off' into a descriptor.