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- His claim to ownership is invalid. 他的所有權是無效的。
- He vainly tried to mark the defacing stain out. 他試圖除去有損外觀的污跡，但沒有成功。
- A passport that is out of date is invalid. 護照過期是無效的。
- His father is a bed-ridden invalid. 他父親是個纏綿病榻的人。
- Her school work isn't quite up to the mark. 她的功課不大符合要求。
- He has been an invalid all his life. 他終身殘廢。
- That was just a lot of hot air what Mark said. 馬克所說的不過是一大堆空話。
- The invalid gained colour under the doctor's care. 病人在醫生的治療下，臉色逐浙紅潤。
- War has left its mark on the country. 戰爭給該國留下了不可磨滅的痕迹。
- The invalid lay propped on the pillows. 那病弱者倚靠在枕頭上。
- The public scandal left a black mark on his career. 這一盡人皆知的醜聞給他的事業留下了污點。
- How much do you know about the works of Mark Twin. 馬克。吐溫寫的作品你知道多少？
- Happy anniversary, Helen and Mark! 海倫、馬克，祝你們結婚周年快樂！
- Mark and Barbara are going together now. 馬克與巴巴拉現在正在談戀愛。
- Mark has lost his job and is worse off than ever. 馬克的工作丟了，情況比以前更糟。
- The girl spent all her spare time to look after her invalid mother. 這個女孩把她所有的業餘時間都用來照顧長期生病的母親。
- He rubbed out the mark on his book. 他把他書上的記號擦掉了。
- Has she ever written a letter to Mark? 她曾經寫信給馬克嗎？
- Everyone knows Tom as an easy mark. 大家都知道湯姆是個容易上當受騙的人。
- Do you feel up to the mark this morning? 今天早上你覺得怎麼樣。
