His willingness to work with AIDS patients was a clear demonstration of his altruistic commitment.
His willingness to work with AIDS patients was a clear demonstration of his altruistic commitment.
他愿意与爱滋病人一起工作，这充分显示了他对别人的关心。
His willingness to work with AIDS patients was a clear demonstration of his altruistic commitment.
他愿意与爱滋病人一起工作，这充分显示了他对别人的关心。