碱性染色剂basic: Basic ＝ Basic English. stain: vt. 1.弄脏，染污 (with); 沾污，玷污(名誉 ...stains: 木料染色剂; 斯坦; 污点absence of stains: 没有污染bate stains: 脱斑, 脱灰下载手机词典可随时随地查词查翻译
