it's not important; it's nothing; never mind; to have nothing to do; to be free[cedict]
我
wǒㄨㄛˇ
I; me; my[cedict]
先
xiānㄒㄧㄢ
early; prior; former; in advance; first[cedict]
回
huíㄏㄨㄟˊ
to circle; to go back; to turn around; to answer; to return; to revolve; Hui religious minority (Chinese Muslims); time; classifier for acts of a play; section or chapter (of a classic book)[cedict]
工厂
gōng chǎngㄍㄨㄥ ㄔㄤˇ
factory[cedict]
啦
lāㄌㄚ
laㄌㄚ˙
(onomat.); (phonetic)[cedict]
(an auxiliary word performing the grammatical functions of mood); fusion of le + a; follows after 比如 listed examples[cedict]