[imperial decree] 天子下诏令指示臣民
颁布诏谕
为保证出使诏谕海外诸国海船的供应，明成祖即位初期，就命各大造船厂建造大批海船。
To ensure the use of ships for his special envoys , Emperor Yongle also ordered all ship manufacturers to be engaged in ship building .
诏谕诏谕诏谕