But personally I believe a business letter should end with Very truly yours, not Sincerely.
还行,乔治。但是我个人相信一封商业信函应该以“敬上”结尾,而不是“谨启”。
Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早,她听到头顶上有飞机飞过,但不知道怎样才能发个信号。