一本正经地用英语怎么说？

一本正经地

例句

• He showed his teeth in a humourless grin. 他一本正经地咧嘴笑了笑。
• Fernando said, all dignity intact. 费尔南多依旧一本正经地说.
• His in sad earnest says: " Legionary soldier should work 25 hours one day. " 他一本正经地说: “ 军队的士兵一天要干25个小时. ”
• He grandly declared that "international politics is a struggle for power". 他一本正经地宣称“国际政治是一场权力之争”。
• He showed his teeth in a humourless grin... 他一本正经地咧嘴笑了笑。
• He grandly declared that 'international politics is a struggle for power'. 他一本正经地宣称“国际政治是一场权力之争”。
• You have to wonder how anyone could say that seriously and with a straight face. 你一定会惊奇怎么会有人能绷着脸、一本正经地说出那些话。