Cook the sauce over a low heat until it boils and thickens.以小火加热酱汁至其沸腾变浓。Keep stirring until the sauce thickens.不停地搅，一直搅到调味汁变稠。Skin thickens, dries and coarsens after sun exposure.晒后皮肤会变厚、变干、变粗糙。...
They are emotionally mature and should behave responsibly...他们在情感上已经成熟，应该负责任地行事。They are emotionally mature and should behave responsibly.他们在情感上已经成熟，应该负责任地行事。The report said that the doctor had acted very responsibly.报告说...