雅思詞組1:at all times總是，始終，隨時

Locking doors at all times...men didn'tthink it was quite as important as women, but both gave it a high safetyrating.

在隨時鎖門這個問題上，男性不像女性那般重視，但二者都給予其高安全等級。

近義詞組：all the time

雅思詞組2:at any time在任何時候

You're supposed to ask for a home visitbefore 10:30 in the morning, but obviously, if it's an emergency, you can phoneat any time, night or day.

你應該在上午10:30前要求醫生出診，但如果情況緊急，毫無疑問，你可以在白天或晚上的任何時候致電。

近義詞組：at all hours

雅思詞組3:at least 至少

At least, we've done the oralpresentation-I thought that was good, the way I got my feedback really quickly.

至少，我們已做了口頭演講，我認為那不錯，能很快得到反饋。

She may receive little education, but atleast she is reliable.

她可能沒接受過什么教育，但至少她很可靠。

The interesting side of sports physiology,at least in my view, is the side that looks at the micro level, looking atcellular change. The researchers are doing cellular research, looking atchanges in body cells when the body is under stress.

至少在我看來，運動生理學有趣的一面是其從微觀上觀察細胞變化。研究人員進行細胞研究，觀察處于壓力之下的人體細胞所發生的變化。

近義詞組：no less than

雅思詞組4:at one's service 愿為某人服務

I'm glad to be at your service, Sir.

先生，我很樂意為您效勞。

雅思詞組5:at risk在危險中

We know from modern farming that if theIevel of breeding stock falls below about three hundred females, the future ofthe species locally is at risk.

根據現代農業的相關知識我們了解到，如果某一物種中雌性的數量低于300，那么該物種在此地的未來堪憂。

近義詞組：at stake, in danger

雅思詞組6:at some stage 在某些時候;在某階段

I want to ask where the staff room is incase I need to find a teacher at some stage

我想問一下教師休息室在哪里，以防我什么時候需要找老師。

雅思詞組7:at the end of在…的盡頭;…結束之時

You've chosen to visit the rainforest inMarch, which is just at the end of the wet season, so you'll soon notice howwell the waterfalls are running and also how damp the ground is.

你們選擇三月來游覽雨林，這正是雨季結束之際，那么不久你們就會發現瀑布有多么壯觀以及地面有多么濕潤。

You will notice at the end of each corridorthat there is another door but these are fire doors and are kept locked fromthe outside.

你會發現每條走廊的盡頭都還有一扇門，但那是消防門，一直都是從外面鎖上的。

雅思詞組8:at the expense of以…為代價

The rapid urbanization in this country isoccurring at the expense of both rural lifestyles and precious culturalheritage.

該國快速的城市化是以犧牲鄉村生活方式和寶貴的文化遺產為代價的。

近義詞組：at the cost of

雅思詞組9:at the moment當下，目前

At the moment, your task is to get over thedifficulties and start afresh again.

目前你的任務是克服困難重新開始。

近義詞組：at present

雅思詞組10:at the outset開端，開始

Your tutors will tell you at the outset howto set out the chapters they require but you will need to ask them how theywould like you to organise the bibliography because it varies depending on yoursubject area.

你們的導師會在開始時告訴你們如何安排他們要求的章節，但是你們需要詢問他們希望你們如何組織參考書目，因為這會因學科領域的不同而不同。

近義詞組：at the beginning