Meaning of xí:
袭
(bound form) to raid; to attack; (bound form) to continue the pattern; to perpetuate
Rù yè hòu, dírén tūrán fādòngle xíjī.
入夜后,敌人突然发动了袭击。
After nightfall, the enemy suddenly launched an attack.
Zhè jiā diàn de shèjì fēnggé jìxí le gǔlǎo de chuántǒng.
这家店的设计风格继袭了古老的传统。
This store's design style perpetuates the ancient traditions.
(literary) classifier for suits of clothing or sets of bedding
Tā mǎi le yī xí xīn de chuángdān hé bèitào.
他买了一袭新的床单和被套。
He bought a new set of sheets and duvet cover.