英 ['spaɪrək(ə)l]美 ['spɪərəkl]
n. [脊椎] 喷水孔；[无脊椎] 气门；呼吸孔
spiracle (n.)
"air hole," 1610s, from Latin spiraculum "breathing hole," from spirare "to breathe" (see spirit (n.)). Related: Spiracular.
相关汉字笔顺：
