source: being attached to her by a thin thread since they had lunched with her which would stretch and stretch, get thinner and thinner as they walked across London
target: متصل به او با نخی نازک چون با او ناهار خورده بودند همان طور که لندن را زیر پا می گذاشتند، کش می آمد و کش می آمد، نازک تر و نازک تر می شد.