13. Could you speak up a little? 你能在大声一点吗?(speak up 大声说=speak out) 14. Would you speak more clearly? 你能再说清楚一点吗? 16. Would you explain more for me? 可以为我解释一遍吗? 17. Please speak a little louder. 请讲大声一点。 18. Would yo...