3 sentences

1. 他赤着膀子，徒手搬运那些沉重的石块。

   tā chì zhe bǎng​zi, tú​shǒu bān​yùn nà​xiē chén​zhòng de shí​kuài.

   He was bare-chested, moving those heavy stones with his bare hands.

   Source: Dong Chinese Dictionary

2. 他经常向朋友吹牛，说自己能徒手抓住老虎。

   tā jīng​cháng xiàng péng​you chuī​niú, shuō zì​jǐ néng tú​shǒu zhuā​zhù lǎo​hǔ.

   He often brags to his friends that he can catch a tiger with his bare hands.

   Source: Dong Chinese Dictionary

3. 这位设计师可以徒手画出非常精准的线条。

   zhè wèi shè​jì​shī kě​yǐ tú​shǒu huà​chū fēi​cháng jīng​zhǔn de xiàn​tiáo.

   This designer can draw very precise lines freehand.

   Source: Dong Chinese Dictionary