build in 或 build into

To construct or include as an integral part of

建造，建立：作為一個整體來建設或包括在內

a wall with shelving that was built in; build stability into the economy.

建造有架子的墻；建立經濟的穩定性

build on 或 build upon

To use as a basis or foundation

依靠，指望：以…為基礎

We must build on our recent success.

我們必須依靠現有的成功

build up

To develop or increase in stages or by degrees

擴大，集結，支持：逐步或分階段的發展或增加

built up the business; building up my endurance for the marathon.

擴大企業；為跑馬拉松而增強我的耐力

To accumulate or collect

積累或收集

sediment building up on the ocean floor.

海底積累的沉積物

To bolster

支持，增加，樹立

build up the product with a massive ad campaign; built up my hopes after the interview.

通過大量的廣告活動來樹立這種產品；在面試后增加我的希望

To fill up (an area) with buildings.

在（一個地區）蓋滿樓房

build one's hopes up

become ever more hopeful or optimistic about something

對…抱有更大希望（變得更加樂觀）

built on sand

(figurative)without reliable foundations or any real substance

(喻)不切實際；不牢固；不穩妥