TL 📖 中文释义 [计] 目标语言, 测试语言 📘 English Definition(英文释义) n a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores ← tkts T 字母词表 tl;dr →