HSK3 汉字 (166-170)

画
这个画家画了自己的肖像(画)。
This painter painted a self-portrait or painted a portrait of himself.

换
我想将/把(我的)美元兑换成人民币。
I'd like to exchange my US dollars for Chinese Yuan.

须
我必须/须要买那只表。 '须要' is different from '需要'  in meaning.
I must buy that watch!

差
你的办法，差不多正确了吧。
Your solution is almost right.

季
夏天是桃子(的)旺季。
Summer is the season for peaches.

HSK3 汉字 (166-170)

correction:

画
那个画家画了自己的画像。 that is right
This painter painted his portrait.  

换
我想把我的美元兑换成人民币。    把……(兑)换成…… = exchange A for B
I'd like to exchange my US dollars for Chinese Yuan.

须
那只手表我必须要买！ 这=this；那=that; 必须=must   Eg 需要 (xu yao)= need  我需要这只手表。 I need this watch

I must buy that watch!                       

差
你的办法，差不多对了吧。   对=right
Your solution is almost right.

季
夏天是桃子旺季。   that is right
Summer is the season for peaches.

HSK3 汉字 (166-170)

画
那个画家画了自己的画像。
This painter painted his portrait.

换
我想用我的美元换人民币。
I'd like to exchange my US dollars for Chinese Yuan.

须
这只手表我必须买！
I must buy that watch!

（需要=need）（必须=must）

差
你的办法，差不多正确了吧。
Your solution is almost right.

季
夏天是桃子成熟旺季。
Summer is the season for peaches.

HSK3 汉字 (166-170)

画

这那个画家画了自己的画像。 or 这画家画了一幅自画像
This painter painted his portrait.

换
我想把我的美元/金换成人民币。
I'd like to exchange my US dollars for Chinese Yuan.

须
这只手表我须要买那个手手表！
I must buy that watch! = 我一定要买那手表

差
你的办法，差不多是对的了吧。
Your solution is almost right.

季
夏天是桃子旺季。
Summer is the season for peaches.

HSK3 汉字 (166-170)

画
那个画家画了自己的画像肖像＊。
This painter painted his portrait.

＊That's how we say portrait.