at the end of one's tether
体力［気力，忍耐］が尽きて
at the end of the corridor
廊下のつきあたりに
at the end of this story
この話の結末で
at the entrance to a city [a house]
町［家］の入り口で（◆入り口を建物の一部と見るときはthe entrance of a buildingという）
at the expense of one's health
健康を犠牲にして
at the extremity of a penninsula
半島の先端
at the extremity of one's desperation
絶望の果てに
at the first light
夜明けに
at the first opportunity
機会のありしだい
at the first [the earliest] possible moment
できるだけ早い機会に
