center to side development正: the first month of the lunar ...侧: slant; sloping发展: develop; expand; grow; burge ...近侧发展区间: zone of proximal development正侧: normal side下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:正侧发展，即可在微信中查询翻译
