看到孩子的笑脸,她不由得笑了起来。Kàndào háizi de xiàoliǎn, tā bùyóude xiào le qǐlái.Seeing the child's smiling face, she could not help smiling too.
听到这个好消息,大家不由得欢呼起来。Tīngdào zhège hǎo xiāoxi, dàjiā bùyóude huānhū qǐlái.Hearing the good news, everyone couldn't help cheering.
走进老家的厨房,我不由得想起了奶奶。Zǒujìn lǎojiā de chúfáng, wǒ bùyóude xiǎngqǐ le nǎinai.Walking into the kitchen of my old home, I could not help thinking of Grandma.