explain 🌱 KET (A2) 📖 verb 🔊 /ɪkˈspleɪn/ 中文释义 解释 例句Can you explain this problem?你能解释这个问题吗? KET 入门词汇中的其他单词wallluckpotatofullblindquarterfrostsoundbakesisterfanmirror