Particle beam

particle ['pɑrtɪkl]

n. 微粒，颗粒;[数，物]粒子，质点;极小量;小品词;

part部分，分开+icle小东西→一小部分→少量

beam [bim]

n. 梁，栋梁;束;光线;（电波的）波束; vi. 发出光与热;面露喜色; vt. 播送;以梁支撑;用…照射;流露; vt.& vi. 笑容满面，眉开眼笑;发射电波，播送;放出束状的光（或热）;

Don't worry about it.

别放在心上。

Troubles never come singly.

祸不单行。

On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;

那天晚上在回家的路上，我低头一看，发现项链不再挂在我的脖子上了。我告诉了比尔。我们马上赶回王宫去寻找。我们询问了那儿的每一个人，问他们是不是拾到了一条项链。可是，真倒霉。我们找不到那条项链；它丢失了。