Examples
例子
nǐ de háng lǐ bì xū tōng guò hǎi guān jiǎn chá
You have to have your baggage checked in customs.
nǐ de qiān zhèng bì xū zài yí mín jú jiǎn chá zhàn tōng guò jiǎn chá
You have to have your visa checked in immigrations.
chéng kè bì xū zài fēi jī qǐ fēi shí zuò hǎo
Passengers must stay seated while the plane takes off.