HSK 4
订
dìng动
to agree; to conclude; to draw up; to subscribe to (a newspaper etc)
我在网上订了两张车票。
Wǒ zài wǎng shàng dìng le liǎng zhāng chē piào.
I booked two train tickets online.
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New in the HSK 3.0 word list at level 4.