Definition (表達)
This phrase is used to indicate the manner in which one is expressing a particular event or opinion, ranging from directness to understatement.
直言之，簡單之，委婉之等
To put it bluntly, I don't think this plan will work at all.
坦白說，我認為這個計劃根本行不通。
To put it simply, we need more resources to complete this task.
簡單來說，我們需要更多資源來完成這項任務。
To put it mildly, he was quite disappointed with the outcome.
說得委婉點，他對這個結果相當失望。