zhè / yī / zhèn / zi / tiān / qì / biàn / huà / hěn / dà / chū / mén / zuì / hǎo / dài / bǎ / yǔ / sǎn

这一阵子天气变化很大，出门最好带把雨伞。

The weather has been changing a lot recently, so it is best to take an umbrella when going out.