His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab.他极度悲观沮丧，而他的代步工具——一辆黑色的出租车，丝毫不能舒缓这一情绪。He leavened his speech with humor.他在演说中掺了一点幽默.A small cake of shortened bread leavened with b...
leavened bread膨松的面包He leavened his speech with humor.他在演说中掺了一点幽默.His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab...他极度悲观沮丧，而他的代步工具——一辆黑色的出租车，丝毫不能舒缓这一情绪。A small cake of shortened ...