relay的過去式及過去分詞
Relaid \Re*laid"\ (r[=e]*l[=a]d"),
imp. & p. p. of {Relay}.
Relay \Re*lay"\ (r?-l?"), v. t. [imp. & p. p. {Relaid} (-l?d);
p. pr. & vb. n. {Relaying}.] [Pref. re- + lay, v.]
To lay again; to lay a second time; as, to relay a pavement.