Period

。

(punctation mark “.”)

句號 /句号

jùhào

(punctation mark “.”)

句點 /句点

jùdiǎn

(punctation mark “.”)

時代 /时代

shídài

(history: period of time seen as coherent entity)

時期 /时期

shíqī

(a length of time)

紀 /纪

jì

(geochronologic unit)

週期 /周期

zhōuqī, zhōuqí

(length of time during which something repeats)