1 sentence

1. 工程师在设计桥梁时必须考虑扭转力。

   gōng​chéng​shī zài shè​jì qiáo​liáng shí bì​xū kǎo​lǜ niǔ​zhuǎn​lì.

   Engineers must consider torsional forces when designing bridges.

   Source: Dong Chinese Dictionary