燕

The sand martin is a brown bird with white underneath.

崖沙燕是一种褐羽白腹的鸟。

Oat bran became the darling of health freaks last year.

燕麦麸在去年成为保健狂人的最爱。

One swallow does not make a summer.

一燕不成夏。

Many people experienced a drop in their cholesterol levels when they consumed oat bran.

很多人食用燕麦麸后胆固醇水平下降了。

Flowers fall off [ will die ] , do what one may . Swallows return, no strangers they.

无可奈何花落去， 似曾相识燕归来。