keep the tail in the water 基本例句 发达;兴隆 He developed the muscles in the legs by running.他藉着跑步使腿部的肌肉发达了。 Nothing is good but in its season.物不逢时难发达。 The real estate business is thriving.房地产生意兴隆。 I'm sure the new agency will be a great success.我相信,新公司定能兴隆昌盛。