2 sentences

1. 床垫的大小应与床的尺寸大致相同。

   chuáng​diàn de dà​xiǎo yīng yǔ chuáng de chǐ​cun dà​zhì xiāng​tóng.

   The size of the mattress should be roughly the same size as the bed.

   Source: CCMatrix

2. 然而，一些大致的规则可能会有所帮助。

   rán'ér, yī​xiē dà​zhì de guī​zé kě​néng huì yǒu​suǒ bāng​zhù.

   A few general rules, however, may be helpful.

   Source: CCMatrix