He was struck with a smart crack on the head.

他头上突然被猛击了一下。

《牛津词典》

Be funny. Kind-spirited humor can douse a hot argument, head off a fight, and turn the drudgery of household responsibilities and planning into something witty, smart, and hilarious.

保持好玩的心态：温馨友好的幽默可以平息一场热烈的争论，避免一场打闹，将累人的家务责任及计划变得有意思，聪明起来，而且超级棒。

youdao

Learn to ignore the nagging voice in your head that says you're not good enough, smart enough, or good-looking enough to succeed.

不要去管脑海中那些喋喋不休地说你还不够好、不够聪明、不够漂亮之类的声音。

youdao

Capt Jeremy Smart, head of enforcement for the MCA, said the company and its directors had "failed to heed" previous warnings and advice.

BBC: Fish

For instance, Smart scroll will scroll the screen based on the angle of your head and Smart pause will stop playing a video when you look away.

WSJ: Galaxy S 4 Is a Good, but Not a Great, Step Up

"The Nokia Lumia 610 will introduce Windows Phone to a new generation of smartphone users, offering something very different to the monochromatic smartphones filling shelves today, " said Jo Harlow, Head of Smart Devices at Nokia.

ENGADGET: Nokia Lumia 610 headed to the (Pacific) 'Ring of Fire' in coming months for ��189