on travel: "在旅途中",強(qiáng)調(diào)旅游正在進(jìn)行
The official on travel repulsed their request. (正在旅行中的官員拒絕了他們的請求.)
for travelling: "為了旅行...(所準(zhǔn)備的...)"
They prepared lots of information for travelling.
(他們?yōu)槁糜螠?zhǔn)備了不少資料.)
He is going to Japan for travelling.
(他就要去日本旅行了.)
visit可作為及物動詞使用,本身不需要跟介詞.
visit on:
1. =visit upon sb.: 詛咒某人
2. on是與后面一個名詞搭配的,比如:
visit on our invitation (在我們的邀請下來訪)
visit to:
這里的visit只可能是作為名詞, 完整的應(yīng)該是:
pay a visit to