她不習慣於這種正式稱呼英文怎麼說？

She is not used to the formal mode of address.

隨便一些,這不是正式場合英文怎麼說？

Loosen up, this isn't a formal occasion.

此信措辭正式英文怎麼說？

The letter was formal in its wording.

你對我不必如此拘束英文怎麼說？

You needn't be so formal with me.

正式信件的開頭你應寫"敬啟者"英文怎麼說？

You should begin a formal letter with "To whom it may concern. "

官方文件是以正式語體寫成的英文怎麼說？

Official documents are written in formal register.

他們只在表面上保持一致英文怎麼說？

They maintained only formal unity among themselves.

這封信以正式文體寫成英文怎麼說？

The letter is written in a formal style.

在正式場合她比較喜歡穿高跟鞋英文怎麼說？

She prefers wearing high heels on formal occasions.