Who knows how bitter I am,I am at a loss and helpless.

Who knows how bitter I am,I am at a loss and helpless. I am at a loss for ouraffection who can it be i am quite at a loss to guess. Who can I call for when I am helpless? I am qnite at a loss what to ,but I am at a loss which to buy Noboday knows who i really am 是什么意思? Nobody knows who I really am. NOBODY KNOWS WHO I REALLY AM是什么意思? l am very happy to have been a tough who knows?I am most sad I am alone ,i am waiting ,i am happy .i am still who i am ,a There are five pairs ,but I am at a loss which to buy.A.to b