重點講解：
1. shield sb. from sth. 保護；掩護；庇護；
例句：He shielded his head from the sun with an old sack.
他用一只舊口袋擋住頭頂的陽光Ta@(@oloI~UyLU,Ibs|f。
2. be exposed to 使暴露于（險境）；使遭受（危險或不快）； 使接觸；
例句：They had not been exposed to most diseases common to urban populations.
城市人口中多數常見的疾病他們都沒有接觸到mfxq#gD.IVmn*R。
3. as well as 除…之外；也；還；
例句：We go there to relax as well as to keep fit.
我們去那兒讓自己放松心情以及保持健康qf=DroAKf|r)。
4. on display 展示；展覽；陳列；
例句：ost of the other artists whose work is on display were his pupils or colleagues.
其他參展的藝術家大多是他的學生或同事Co9NIGr@R0(!V4O。
5. by hand 用手工；
例句：Each pleat was stitched in place by hand.
每條褶裥都是手工縫制到位的&_=UD@b&vLHrH-;31。