1.The apple trees were laden with fruit.

1.苹树上。

2.They are mucking the apple trees.

2.他们正在给苹树粪肥。

3.Around here apple trees began to be planted extensively in 1953.

3.1953年这一带开始大植苹树。

4.The apple tree was bowed down with the weight of its fruit.

4.那棵苹树实, 压弯了树枝。