海底扩张说 Save Sign in to save words Traditional (Taiwan): 海底擴張說 hǎidǐkuòzhāngshuō ㄏㄞˇ ㄉㄧˇ ㄎㄨㄛˋ ㄓㄤ ㄕㄨㄛ theory of seafloor spreading (geology) Character by character 海(hǎi)surname Hai 底(dǐ)bottom 扩(kuò)enlarge 张(zhāng)surname Zhang 说(shuō)speak A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0