to make rules or laws stricter
使规则或法律更加严格 (shǐ guīzé huò fǎlǜ gèngjiā yángé)
"The central authority decided to tighten up regulations on foreign trade."
"中央当局决定加强对外贸易的监管规定。" (zhōngyāng dāngjú juédìng jiāqiáng duì wàimài màoyì de guīzé.)
to link countries through shared economic activities
to take advantage of something to gain success
to keep smiling even during difficult times
to get rid of fear or anxiety
to change something into something else
to fall onto one side accidentally
