Four-layer
四層
?? 詞語組成解析
four
[f?r]
num. 四;四個;第四;
n. 四的;四個一組之物;
layer
['lei?]
n. 層，層次;膜;[植]壓條;放置者，計劃者;
vt. 把…分層堆放;借助壓條法;生根繁殖;將（頭發）剪成不同層次;
vi. 形成或分成層次;[植]通過壓條法而生根;
??? 情景例句
We have closely connected with firms in USA.
我們同美國有良好的業務關系。
I'll pick his wallet from his pocket.
我要從他的袋子里扒取錢包。
The woman immediately behind the two cars happened to be a learner.
緊跟其后的一輛車上的司機碰巧是個初學者，