the answer to why only some of us put on weight lay in the genes that control the body's metabolism,只有一部分人會發胖的原因來自人體里控制新陳代謝的基因

put on weight:增加體重

Too many sweet foods may make you put on weight.

太多的甜食可能會使你增加體重。

I'm afraid I am putting on weight.

我擔心我增加體重啦。

the rate at which food is broken down and turned into energy.即食物消化并轉化成能量的速度

break down:分解

Sugar and starch are broken down in the stomach.

糖和淀粉在胃里被分解。

turn into:（使）變成；進入

The whole thing turned into a bitter quarrel.

整件事釀成了激烈的爭吵。

I myself was involved in a Horizon programme in the '90s我本人90年代參與了地平線的一個項目

involve in:卷入； 陷入

I got involved in a quarrel about the price.

我被卷入了一場有關價格的爭吵。