spondee

n metrical foot in poetry consisting of two long or stressed syllables 扬扬格（诗歌音步, 由两个长音节或重音节组成）.

split up, split-level, splitting, splotch, splotch (Brit also splodge), splurge, splutter, spoil, spoil-sport, spoilage, spoiler, spoils, spoils system, spoke, spoken, spokeshave, spokesman, spokeswoman, spoliation, spondaic, sponge, sponge-bag, sponge-cake, sponge-pudding, sponger, sponginess, sponging, spongy, sponsor, sponsorship, spontaneity, spontaneous, spontaneous combustion, spontaneously, spoof, spook, spookiness, spooky, spool, spoon,