There are currently over 7.9 billion people in the world.
目前全世界有超過七十九億人口。

The girl accidentally broke the window and promptly ran away.
那名女孩不小心打破了窗戶並立刻跑走。

The host asked the singer how she came up with the song, and she responded that it all just came out naturally.
主持人問那位歌手她是怎麼想出這首歌的，她回答說這一切都是自然而然寫出來的。

I asked Katie a math question and she responded to it quickly.
我問凱蒂一個數學問題，她很快便回答我。

The patient responded well to the new medicine.
病人對新藥的反應良好。

The teacher responded with a smile when the students waved at her.
當學生們向那位老師揮手時，她報以微笑。

The politician failed to give definite answers to many questions the press raised.
對於媒體提出的諸多問題，該政治人物均未給予明確答覆。

Certain answers are not correct.
某些答案有誤。

A certain man called you yesterday.
昨天有某個人打電話找你。

I’m certain that Miley will succeed.
我確信麥莉會成功。

I’m certain of Miley’s success.
我確信麥莉會成功。

Nobody knows for certain when Michael is coming back.
沒有人確知邁可什麼時候會回來。

Certain of the employees take long coffee breaks.
有些員工喝咖啡的休息時間很久。

Give me liberty, or give me death!
不自由，毋寧死！── 諺語

My personal belongings on the table were all gone when I returned from the restroom.
我從廁所回來時，我桌上的私人物品全都不見了。

The chairman will make a personal appearance on TV.
主席將親自在電視中露面。

Having conversations through emails is neither personal nor effective.
透過電子郵件進行對話既不親密也不有效。

Fred is sensitive to others’ remarks.
弗瑞德對別人的話很敏感。

Don’t mention Donald’s missing dog―he’s very sensitive about that.
不要提到唐納德走失的狗 — 他對那件事非常敏感。

Recycling confidential documents instead of shredding them may cause a leak in information.
若機密文件不用碎紙機銷毀而是拿去回收，可能會造成資訊外洩。

All patients' medical records and personal information will be kept confidential.
所有患者的就醫紀錄與個人資料都將保密。

These files are strictly confidential. 
這些是極機密檔案。

Did the teacher make any comments on your 
speech?

老師對你的演說有什麼評論嗎？

Did the teacher comment on your speech?
老師對你的演說有什麼評論嗎？

I was unhappy when Ray commented on my new shoes.
瑞評論我的新鞋時，我很不高興。

This movie sparked heated comments online, with mixed reviews.
這部電影在網路上引起了熱烈的評論，褒貶不一。

My legs were sore after I ran the marathon.
跑完馬拉松之後，我的雙腳酸痛得要命。

I have a sore throat today and cannot speak.
我今天喉嚨痛，沒辦法講話。

To Mr. Smith, seeing his children happily playing when he gets home from work is a sight for sore eyes.
對史密斯先生來說，下班回家看他的孩子開心地玩耍便是人生樂事。

I fell the other day and have got a sore on my right arm.
我前幾天跌倒了，右手臂上有一塊紅腫處。

Scientists have always been curious about outer space.
科學家對於外太空始終充滿好奇。

It was curious that my talkative brother was so quiet today.
我那很愛說話的弟弟今天這麼安靜真的是很奇怪。

The cat made a curious noise that I had never heard before.
這隻貓咪發出了我從未聽過的奇怪聲音。