dropped落: fall; drop线: thread; string; wire的: 4次方是 The fourth power of 2 i ...落线: line of fall崩落线: breaking edge; breaking line; caving line; cavingline; line of break; lineofbreak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:落线的，即可在微信中查询翻译
