amended level订正: make corrections; correct; r ...的: 4次方是 The fourth power of 2 i ...高度: altitude; height; elevation层: I storey; tier; stratum入境时的高度层: level of entry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:订正的高度层，即可在微信中查询翻译
