来自毛国君的问题
【Doyouknowsomethingabouttreerings得阅读理解】
Doyouknowsomethingabouttreerings得阅读理解


【Doyouknowsomethingabouttreerings得阅读理解】
Doyouknowsomethingabouttreerings得阅读理解
Doyouknowsomethingabouttreerings(年轮)?Doyouknowtheycantelluswhattheweatherwaslike,sometimesevenhundredsofyearsago?Atreewillgrowwellinaclimate(气候)withlotsofsunshinea...