The annual sales increased by 5% compared to the previous year.

Recently, my lumbago has been so bad that I can't concentrate on my work.

Japan and China are strengthening their foreign commerce relationship.

We are engaged in international trade with America.

I've had a toothache since last night and couldn't sleep.

I have been to Nantong.

I bought a new incubator.

This is my new talisman.

In programming, we often use a metasyntactic variable called 'bar'.

Tefu is my best friend.