hợp lý 
logical like: logisch → →
ökologisch ☊ 
sinh thái ☊ 
☊ ökologisch ☊ 生态的 ☊ shēng tài de Wissenschaftler sprechen von einer ökologischen Katastrophe. ☊ Những nhà khoa học nói về thảm họa sinh thái. ☊ (Lektion 72, Nr. 1035) Schon in der Schule habe ich mich für Physik interessiert und da war es für mich logisch dies auch zu studieren. ☊ Ngay từ khi học phổ thông tôi đã quan tâm đến vật lí và học vật lí ở đại học là điều dĩ nhiên đối với tôi. ☊ (Lektion 107, Nr. 1876) We live in an age of rapid technological advance. ☊ advance ☊
barrier to sth: Lack of confidence is a psychological barrier to success. ☊ barrier ☊
For Durkheim, comparison was the most important method of analysis in sociology. ☊ comparison ☊
If we took this argument to its logical conclusion ... ☊ conclusion ☊
economic/commercial/environmental/practical considerations ☊ consideration ☊
You must learn how to construct a logical argument. ☊ construct ☊
Many biological processes are controlled by hormones. ☊ control ☊
the delicate ecological balance of the rainforest ☊ delicate ☊
First, you have to think logically about your fears. ☊ have to ☊
a logical thing to do in the circumstances ☊ logical ☊
It was a logical conclusion from the child's point of view. ☊ logical ☊
Each of them having their own room was the logical solution. ☊ logical ☊
a logical argument ☊ logical ☊
Computer programming needs someone with a logical mind. ☊ logical ☊
in chronological/numerical order ☊ order ☊
I admire the clear, logical presentation of her arguments. ☊ presentation ☊
pictures of animals, both real and mythological ☊ real ☊
Only human beings are capable of reason (= of thinking in a logical way, etc.). ☊ reason ☊
The library has a large biology section. ☊ section ☊
an archaeological site ☊ site ☊
a geological survey ☊ survey ☊