tā / wā / kōng / xīn / sī / de / wèi / hái / zi / zhǔn / bèi / le / yí / fèn / tè / bié / de / lǐ / wù

他挖空心思地为孩子准备了一份特别的礼物。

He went to great lengths to prepare a special gift for his child.