A look of vacancy
茫然若失的神情
🧩 词语组成解析
look
[lʊk]
vt.& vi. 看，瞧;
vi. 注意;面向;寻找;看起来好像;
n. 看;（尤指吸引人的）相貌;眼神;样子;
int. （插话或唤起注意）喂，听我说;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
Can I help you?
我可以帮上忙吗？
Whom will you invite to the picnic?
你将邀请谁参加野餐？
The last order didn't work out too well for us.
上回订的货用起来不怎么顺。