During the Trade Phase, each player tallies up all of the trade
symbols ( @ ) in the city outskirts of all of their cities and
then increases the trade dial on their civilization sheet by that
amount (up to a maximum of 27 trade). For example, if a player
has two cities, one with four trade symbols in its outskirts and
the other with eight trade symbols in its outskirts, that player
increases their trade dial by 12 on their civilization sheet. Unlike
production (see page 15), trade may be saved from turn to turn if
not spent.

Note: When increasing or decreasing the trade dial, make sure to
count the spaces marked “I,” “II,” “III,” “IV,” and “V.” Although
labeled differently from the other values, these spaces must be
counted as usual. So, for instance, a player who gains three trade
while at “3” on their trade dial would advance their dial to the
“I” space rather than the “7.”

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1. 자기 도시의 교역 기호 숫자만큼 교역 다이얼을 올린다.

2. 교역은 사용 안하면 계속 누적된다.

이게 맞는건가요?

그리고 두번째 문단에 로마자 기호는 교역량을 계산할 때 어떤 영향을 미치는건간요?
아무리 읽어봐도 뭔 소린지 이해가 안되네요