The four boxes were so heavy that I worried about how to carry them into my house when we were back.

四个箱子都很重，回来的时候我都在发愁如何把它们搬到家里。

youdao

The four boxes were so heavy that I worried about how to carry them into my house when we were back.

四个箱子都很重，回来的时候我都在发愁如何把它们搬到家里。

youdao