每个省都有自己的简称,比如广东简称粤。Měi ge shěng dōu yǒu zìjǐ de jiǎnchēng, bǐrú Guǎngdōng jiǎnchēng Yuè.Every province has its own short name; for example, Guangdong is abbreviated as Yue.
公司的全名太长了,大家平时都用简称。Gōngsī de quánmíng tài cháng le, dàjiā píngshí dōu yòng jiǎnchēng.The company's full name is too long, so everyone usually uses the short form.
这个活动的名字很长,我们把它简称为爬山日。Zhège huódòng de míngzi hěn cháng, wǒmen bǎ tā jiǎnchēng wéi páshānrì.The name of this event is long, so we call it Hiking Day for short.