riv·er navi·ˈga·tion 名词 no pl 航海
navi·ga·tion [ˌnævɪˈgeɪʃən] 名词 no pl
I. riv·er [ˈrɪvəʳ, 美 -ɚ] 名词
1. river (water):
2. river (quantity):
II. riv·er [ˈrɪvəʳ, 美 -ɚ] 名词 modifier
navigation 名词 E-COMM
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单语范例（未经PONS编辑处理）
They are most often used to divert water for irrigation but the largest and most notable examples are used to ease river navigation.
en.wikipedia.org River turbulence has created deep pools beneath steep sandstone cliffs on the northeasterly bank.
en.wikipedia.org A sophisticated network of storerooms and galleries completed the fortress' defenses and allowed communication between the castle, the town downwards, and the river banks.
en.wikipedia.org The boat draws only of water, for the river is relatively shallow.
en.wikipedia.org His men, he wrote, were very turbulent and mutinous, refused all compromise, and were determined to go into the river to be paid off.
en.wikipedia.org