Correct

开航

/ kāi háng /
Strokes

Example

As a Verb

become open for navigation or flight

1
Niǔyuē
纽约
利物浦
zhījiān
之间
de
kōngzhōng
空中
xīn
hángxiàn
航线
kāiháng
开航
le
  

A new air route between New York and Liverpool has been opened.

As a Verb

(of a river, lake, etc) be open and navigable

2
大河
jīngguò
经过
sān
yuè
de
bīngdòng
冰冻期
hòu
chóngxīn
重新
kāiháng
开航
le
  

The river is open again after a three-month freezing season.

As a Verb

sail; make/set sail

3
men
我们
6
6
diǎnzhōng
点钟
jiě
lǎn
kāiháng
开航
  

We cast off and set sail at six.

4
Chéng
乘客
dōu
shàng
chuán
zhīhòu
之后
  
,
chuán
jiù
kāiháng
开航
le
  

When everybody was on board, the boat set sail.