单词	echo(ed) signal
释义	echo(ed) signal 回波信号
随便看	sinus gland sinus hair sinus hairs sinus headache sinus headaches sinus hepatici sinus histiocytosis sinus histocytosis sinus hoos sinus hormone sinus impar sinus infection Sinus intercavernosi sinus intercavernosus anterior sinus intercavernosus posterior sinusioidal law Sinus Iridum sinus irregularity sinusitis sinusitis abscendens sinusitis caseosa sinusitis frontalis sinusitis rectalis Sinus lactiferi sinus lactiferus 人心不古人心不足蛇吞象人心丧尽人心叵测人心向背人心大快人心如面人心归向人心惟危人心惶惶ほね接ぎほね無しほね組みほね絡みほね継ぎほのほの【仄】ほのおほのお【炎（焰）】ほのか