wife words

Question 1

论文

Answer 1

论文〔論-〕
lùnwén
thesis; dissertation; treatise; paper

学术论文
xuéshù lùnwén
an academic thesis (or paper)

科学论文
kēxué lùnwén
a scientific treatise

Question 2

保存

Answer 2

保存
bǎocún
preserve; conserve; keep

保存实力
bǎocún shílì
preserve one’s strength; conserve one’s forces

保存自己, 消灭敌人
bǎocún zìjǐ, xiāomiè dírén
preserve oneself and destroy the enemy

这批文物保存得很完好。
Zhè pī wénwù bǎocún de hěn wánhǎo.
These cultural relics are well preserved.

他还保存着长征时戴的那顶帽子。
Tā hái bǎocún zhe chángzhēng shí dài de nà dǐng màozi.
He still keeps the cap he wore on the Long March.