Old Mr. Coulson groaned a little, and then sat up straight in his invalid's chair.

老科尔森先生呻吟了一声， 然后在病人的椅子上坐直了身子。

The old lady was heavily veiled, and so weakened by age and sickness that she had to be wheeled aboard the vessel in an invalid chair.

老太太蒙着厚重的面纱， 年老体衰，身体虚弱，只能坐在轮椅上， 用轮椅推着她上船。