我汉语拼音

受苦 – 认为 –自己 – 命 – 通 – 打开 – 蛋糕 – 必须 – 时间 – 时候 – 工夫
不错 – 发音 – 雨 – 相册 – 鱼 – 馆 – 文化 – 久 – 肉 – 地球 – 森林 - 旅游 -

As a non-native chinese speaker,you are very good.but there are some place you are wrong.they are:"认为“ren4 wei2",必须”bi4 xu1"not "bi4 shu1".“时间”shi2 jian1"“时候”shi2 hou4",时 pronuce "shi2" not "shi3".

and 不错 should be "bu2 cuo",not "bu4 cuo"

In chinese ,one word can have some different pronunciation,and when it pronuce different ,it has different meanings.