2 sentences

1. 长时间站立会导致下肢水肿。

   cháng shí​jiān zhàn​lì huì dǎo​zhì xià​zhī shuǐ​zhǒng.

   Standing for a long time can lead to edema in the lower limbs.

   Source: Dong Chinese Dictionary

2. 长时间站立可能会导致下肢水肿。

   cháng shí​jiān zhàn​lì kě​néng huì dǎo​zhì xià​zhī shuǐ​zhǒng.

   Standing for long periods may cause edema in the lower limbs.

   Source: Dong Chinese Dictionary