Abbreviation for temporary duty assignment, especially in the military

• Short-term posting away from one's permanent station

临时勤务的缩写，尤指军队

• 短期派往非驻地执行任务

Abbreviation of today as a noun, informal

• The present day

“今天”的缩写（名词），非正式

• 今天这一天

Abbreviation of today as an adverb, informal

• On this day

“今天”的缩写（副词），非正式

• 在今天