1.account for 占……比例

Coursework accounts for 40% of the final marks.

課程作業占最后總成績的40%bI)V0eFT3J。

2.for proof 要論證據

For proof, see Clint Eastwood's Gran Torino.

要論證據，克林特·伊斯特伍德主演的《老爺車》就是證據5R^q17P6b5mBZT,_oe。

3.by hand 手工

Rice farmers here still plant and harvest their crops by hand.

這里的稻農仍然用手工種植和收割莊稼ppte1CsFcv6[AWW~X#。

4.form the backbone of 構成了……的支柱

These laboratories, which are located in more than 80 countries, form the backbone of the global influenza surveillance programme.

這些實驗室分設在80多個國家，構成了全球流感監測規劃的中堅力量@-A6wgYu94I+s*。