khoảng (k-t.gian) khoảng cách 
interval like: khoảng cách → →
die Entfernung schätzen ☊ 
Đoán khoảng cách ☊ 
☊ Ich schätze die Entfernung von zu Hause aus, dorthin auf neunzig Kilometer. ☊ Anh đoán khoảng cách từ nhà tới đó khoảng 90 Ki lô mét. ☊ (Lektion 50, Nr. 707) There's a big age gap between them (= a big difference in their ages). ☊ age ☊
He held the dirty rag at arm's length (= as far away from his body as possible). ☊ arm ☊
The noise came at two-minute intervals (= once every two minutes). ☊ at ☊
a short/long distance ☊ distance ☊
In the US, distance is measured in miles. ☊ distance ☊
The beach is within walking distance of my house (= you can walk there easily). ☊ distance ☊
You'll never get the ball in from that distance. ☊ distance ☊
Alice stood staring into the distance. ☊ in/into the distance ☊
The product has filled a gap in the market. ☊ fill ☊
Leave a gap between your car and the next. ☊ gap ☊
There's a big age gap between them (= a big difference in their ages). ☊ gap ☊
His death left an enormous gap in my life. ☊ gap ☊
We think we've identified a gap in the market (= a business opportunity to make or sell sth that is not yet available). ☊ gap ☊
The runners started at 5-minute intervals. ☊ at (...) intervals ☊
Flaming torches were positioned at intervals along the terrace. ☊ at (...) intervals ☊
There was only a narrow gap between the bed and the wall. ☊ narrow ☊
In the distance a band was playing. ☊ play ☊
We watched the explosion from a safe distance. ☊ safe ☊
The school is within easy walking distance of the train station. ☊ walk ☊
watch sb/sth do sth: They watched the bus disappear into the distance. ☊ watch ☊